19917897867

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{3217}}^1$

素因数の和:3338

約数の個数: 128

約数和(自身を含む): 37367930880

約数和(自身を除く): 17450033013

約数列:

[1, 3, 7, 9, 17, 21, 27, 41, 47, 51, 63, 119, 123, 141, 153, 189, 287, 329, 357, 369, 423, 459, 697, 799, 861, 987, 1071, 1107, 1269, 1927, 2091, 2397, 2583, 2961, 3213, 3217, 4879, 5593, 5781, 6273, 7191, 7749, 8883, 9651, 13489, 14637, 16779, 17343, 18819, 21573, 22519, 28953, 32759, 40467, 43911, 50337, 52029, 54689, 67557, 86859, 98277, 121401, 131733, 131897, 151011, 151199, 164067, 202671, 229313, 294831, 364203, 382823, 395691, 453597, 492201, 608013, 687939, 884493, 923279, 1058393, 1148469, 1187073, 1360791, 1476603, 2063817, 2242249, 2570383, 2769837, 3175179, 3445407, 3561219, 4082373, 6191451, 6199159, 6726747, 7711149, 8309511, 9525537, 10336221, 15695743, 17992681, 18597477, 20180241, 23133447, 24928533, 28576611, 43394113, 47087229, 53978043, 55792431, 60540723, 69400341, 105385703, 130182339, 141261687, 161934129, 167377293, 316157109, 390547017, 423785061, 485802387, 737699921, 948471327, 1171641051, 2213099763, 2845413981, 6639299289, 19917897867]

約数ペア:

[(1, 19917897867), (3, 6639299289), (7, 2845413981), (9, 2213099763), (17, 1171641051), (21, 948471327), (27, 737699921), (41, 485802387), (47, 423785061), (51, 390547017), (63, 316157109), (119, 167377293), (123, 161934129), (141, 141261687), (153, 130182339), (189, 105385703), (287, 69400341), (329, 60540723), (357, 55792431), (369, 53978043), (423, 47087229), (459, 43394113), (697, 28576611), (799, 24928533), (861, 23133447), (987, 20180241), (1071, 18597477), (1107, 17992681), (1269, 15695743), (1927, 10336221), (2091, 9525537), (2397, 8309511), (2583, 7711149), (2961, 6726747), (3213, 6199159), (3217, 6191451), (4879, 4082373), (5593, 3561219), (5781, 3445407), (6273, 3175179), (7191, 2769837), (7749, 2570383), (8883, 2242249), (9651, 2063817), (13489, 1476603), (14637, 1360791), (16779, 1187073), (17343, 1148469), (18819, 1058393), (21573, 923279), (22519, 884493), (28953, 687939), (32759, 608013), (40467, 492201), (43911, 453597), (50337, 395691), (52029, 382823), (54689, 364203), (67557, 294831), (86859, 229313), (98277, 202671), (121401, 164067), (131733, 151199), (131897, 151011)]