21656295

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8443}}^1$

素因数の和:8476

約数の個数: 32

約数和(自身を含む): 40531200

約数和(自身を除く): 18874905

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 8443, 25329, 42215, 75987, 126645, 160417, 227961, 379935, 481251, 802085, 1139805, 1443753, 2406255, 4331259, 7218765, 21656295]

約数ペア:

[(1, 21656295), (3, 7218765), (5, 4331259), (9, 2406255), (15, 1443753), (19, 1139805), (27, 802085), (45, 481251), (57, 379935), (95, 227961), (135, 160417), (171, 126645), (285, 75987), (513, 42215), (855, 25329), (2565, 8443)]