3947535

素因数分解:

$3^7\times 5^1\times {\mathrm{19}}^2$

素因数の和:64

約数の個数: 48

約数和(自身を含む): 7498080

約数和(自身を除く): 3550545

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 361, 405, 513, 729, 855, 1083, 1215, 1539, 1805, 2187, 2565, 3249, 3645, 4617, 5415, 7695, 9747, 10935, 13851, 16245, 23085, 29241, 41553, 48735, 69255, 87723, 146205, 207765, 263169, 438615, 789507, 1315845, 3947535]

約数ペア:

[(1, 3947535), (3, 1315845), (5, 789507), (9, 438615), (15, 263169), (19, 207765), (27, 146205), (45, 87723), (57, 69255), (81, 48735), (95, 41553), (135, 29241), (171, 23085), (243, 16245), (285, 13851), (361, 10935), (405, 9747), (513, 7695), (729, 5415), (855, 4617), (1083, 3645), (1215, 3249), (1539, 2565), (1805, 2187)]