21872325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{15349}}^1$

素因数の和:15381

約数の個数: 24

約数和(自身を含む): 38068000

約数和(自身を除く): 16195675

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 15349, 46047, 76745, 230235, 291631, 383725, 874893, 1151175, 1458155, 4374465, 7290775, 21872325]

約数ペア:

[(1, 21872325), (3, 7290775), (5, 4374465), (15, 1458155), (19, 1151175), (25, 874893), (57, 383725), (75, 291631), (95, 230235), (285, 76745), (475, 46047), (1425, 15349)]