21953778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 59996160

約数和(自身を除く): 38042382

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 41, 42, 57, 61, 66, 77, 82, 114, 122, 123, 133, 154, 183, 209, 231, 246, 266, 287, 366, 399, 418, 427, 451, 462, 574, 627, 671, 779, 798, 854, 861, 902, 1159, 1254, 1281, 1342, 1353, 1463, 1558, 1722, 2013, 2318, 2337, 2501, 2562, 2706, 2926, 3157, 3477, 4026, 4389, 4674, 4697, 5002, 5453, 6314, 6954, 7503, 8113, 8569, 8778, 9394, 9471, 10906, 12749, 14091, 15006, 16226, 16359, 17138, 17507, 18942, 24339, 25498, 25707, 27511, 28182, 32718, 35014, 38247, 47519, 48678, 51414, 52521, 55022, 59983, 76494, 82533, 89243, 95038, 105042, 119966, 142557, 165066, 178486, 179949, 192577, 267729, 285114, 332633, 359898, 385154, 522709, 535458, 577731, 665266, 997899, 1045418, 1155462, 1568127, 1995798, 3136254, 3658963, 7317926, 10976889, 21953778]

約数ペア:

[(1, 21953778), (2, 10976889), (3, 7317926), (6, 3658963), (7, 3136254), (11, 1995798), (14, 1568127), (19, 1155462), (21, 1045418), (22, 997899), (33, 665266), (38, 577731), (41, 535458), (42, 522709), (57, 385154), (61, 359898), (66, 332633), (77, 285114), (82, 267729), (114, 192577), (122, 179949), (123, 178486), (133, 165066), (154, 142557), (183, 119966), (209, 105042), (231, 95038), (246, 89243), (266, 82533), (287, 76494), (366, 59983), (399, 55022), (418, 52521), (427, 51414), (451, 48678), (462, 47519), (574, 38247), (627, 35014), (671, 32718), (779, 28182), (798, 27511), (854, 25707), (861, 25498), (902, 24339), (1159, 18942), (1254, 17507), (1281, 17138), (1342, 16359), (1353, 16226), (1463, 15006), (1558, 14091), (1722, 12749), (2013, 10906), (2318, 9471), (2337, 9394), (2501, 8778), (2562, 8569), (2706, 8113), (2926, 7503), (3157, 6954), (3477, 6314), (4026, 5453), (4389, 5002), (4674, 4697)]