21513996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1447}}^1$

素因数の和:1523

約数の個数: 72

約数和(自身を含む): 63248640

約数和(自身を除く): 41734644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 59, 63, 84, 118, 126, 177, 236, 252, 354, 413, 531, 708, 826, 1062, 1239, 1447, 1652, 2124, 2478, 2894, 3717, 4341, 4956, 5788, 7434, 8682, 10129, 13023, 14868, 17364, 20258, 26046, 30387, 40516, 52092, 60774, 85373, 91161, 121548, 170746, 182322, 256119, 341492, 364644, 512238, 597611, 768357, 1024476, 1195222, 1536714, 1792833, 2390444, 3073428, 3585666, 5378499, 7171332, 10756998, 21513996]

約数ペア:

[(1, 21513996), (2, 10756998), (3, 7171332), (4, 5378499), (6, 3585666), (7, 3073428), (9, 2390444), (12, 1792833), (14, 1536714), (18, 1195222), (21, 1024476), (28, 768357), (36, 597611), (42, 512238), (59, 364644), (63, 341492), (84, 256119), (118, 182322), (126, 170746), (177, 121548), (236, 91161), (252, 85373), (354, 60774), (413, 52092), (531, 40516), (708, 30387), (826, 26046), (1062, 20258), (1239, 17364), (1447, 14868), (1652, 13023), (2124, 10129), (2478, 8682), (2894, 7434), (3717, 5788), (4341, 4956)]