21031633875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{421}}^1\times {\mathrm{19031}}^1$

素因数の和:19477

約数の個数: 64

約数和(自身を含む): 40093267968

約数和(自身を除く): 19061634093

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 421, 525, 875, 1263, 2105, 2625, 2947, 6315, 8841, 10525, 14735, 19031, 31575, 44205, 52625, 57093, 73675, 95155, 133217, 157875, 221025, 285465, 368375, 399651, 475775, 666085, 1105125, 1427325, 1998255, 2378875, 3330425, 7136625, 8012051, 9991275, 16652125, 24036153, 40060255, 49956375, 56084357, 120180765, 168253071, 200301275, 280421785, 600903825, 841265355, 1001506375, 1402108925, 3004519125, 4206326775, 7010544625, 21031633875]

約数ペア:

[(1, 21031633875), (3, 7010544625), (5, 4206326775), (7, 3004519125), (15, 1402108925), (21, 1001506375), (25, 841265355), (35, 600903825), (75, 280421785), (105, 200301275), (125, 168253071), (175, 120180765), (375, 56084357), (421, 49956375), (525, 40060255), (875, 24036153), (1263, 16652125), (2105, 9991275), (2625, 8012051), (2947, 7136625), (6315, 3330425), (8841, 2378875), (10525, 1998255), (14735, 1427325), (19031, 1105125), (31575, 666085), (44205, 475775), (52625, 399651), (57093, 368375), (73675, 285465), (95155, 221025), (133217, 157875)]