21347964

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 63737856

約数和(自身を除く): 42389892

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 31, 33, 36, 37, 44, 47, 62, 66, 74, 93, 94, 99, 111, 124, 132, 141, 148, 186, 188, 198, 222, 279, 282, 333, 341, 372, 396, 407, 423, 444, 517, 558, 564, 666, 682, 814, 846, 1023, 1034, 1116, 1147, 1221, 1332, 1364, 1457, 1551, 1628, 1692, 1739, 2046, 2068, 2294, 2442, 2914, 3069, 3102, 3441, 3478, 3663, 4092, 4371, 4588, 4653, 4884, 5217, 5828, 6138, 6204, 6882, 6956, 7326, 8742, 9306, 10323, 10434, 12276, 12617, 13113, 13764, 14652, 15651, 16027, 17484, 18612, 19129, 20646, 20868, 25234, 26226, 31302, 32054, 37851, 38258, 41292, 48081, 50468, 52452, 53909, 57387, 62604, 64108, 75702, 76516, 96162, 107818, 113553, 114774, 144243, 151404, 161727, 172161, 192324, 215636, 227106, 229548, 288486, 323454, 344322, 454212, 485181, 576972, 592999, 646908, 688644, 970362, 1185998, 1778997, 1940724, 2371996, 3557994, 5336991, 7115988, 10673982, 21347964]

約数ペア:

[(1, 21347964), (2, 10673982), (3, 7115988), (4, 5336991), (6, 3557994), (9, 2371996), (11, 1940724), (12, 1778997), (18, 1185998), (22, 970362), (31, 688644), (33, 646908), (36, 592999), (37, 576972), (44, 485181), (47, 454212), (62, 344322), (66, 323454), (74, 288486), (93, 229548), (94, 227106), (99, 215636), (111, 192324), (124, 172161), (132, 161727), (141, 151404), (148, 144243), (186, 114774), (188, 113553), (198, 107818), (222, 96162), (279, 76516), (282, 75702), (333, 64108), (341, 62604), (372, 57387), (396, 53909), (407, 52452), (423, 50468), (444, 48081), (517, 41292), (558, 38258), (564, 37851), (666, 32054), (682, 31302), (814, 26226), (846, 25234), (1023, 20868), (1034, 20646), (1116, 19129), (1147, 18612), (1221, 17484), (1332, 16027), (1364, 15651), (1457, 14652), (1551, 13764), (1628, 13113), (1692, 12617), (1739, 12276), (2046, 10434), (2068, 10323), (2294, 9306), (2442, 8742), (2914, 7326), (3069, 6956), (3102, 6882), (3441, 6204), (3478, 6138), (3663, 5828), (4092, 5217), (4371, 4884), (4588, 4653)]