21522081

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 34069248

約数和(自身を除く): 12547167

約数列:

[1, 3, 7, 21, 53, 61, 159, 183, 317, 371, 427, 951, 1113, 1281, 2219, 3233, 6657, 9699, 16801, 19337, 22631, 50403, 58011, 67893, 117607, 135359, 352821, 406077, 1024861, 3074583, 7174027, 21522081]

約数ペア:

[(1, 21522081), (3, 7174027), (7, 3074583), (21, 1024861), (53, 406077), (61, 352821), (159, 135359), (183, 117607), (317, 67893), (371, 58011), (427, 50403), (951, 22631), (1113, 19337), (1281, 16801), (2219, 9699), (3233, 6657)]