21522915

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2797}}^1$

素因数の和:2833

約数の個数: 40

約数和(自身を含む): 40626960

約数和(自身を除く): 19104045

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2797, 7695, 8391, 13985, 25173, 41955, 53143, 75519, 125865, 159429, 226557, 265715, 377595, 478287, 797145, 1132785, 1434861, 2391435, 4304583, 7174305, 21522915]

約数ペア:

[(1, 21522915), (3, 7174305), (5, 4304583), (9, 2391435), (15, 1434861), (19, 1132785), (27, 797145), (45, 478287), (57, 377595), (81, 265715), (95, 226557), (135, 159429), (171, 125865), (285, 75519), (405, 53143), (513, 41955), (855, 25173), (1539, 13985), (2565, 8391), (2797, 7695)]