21369225

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4013}}^1$

素因数の和:4097

約数の個数: 24

約数和(自身を含む): 35836992

約数和(自身を除く): 14467767

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 4013, 5325, 12039, 20065, 60195, 100325, 284923, 300975, 854769, 1424615, 4273845, 7123075, 21369225]

約数ペア:

[(1, 21369225), (3, 7123075), (5, 4273845), (15, 1424615), (25, 854769), (71, 300975), (75, 284923), (213, 100325), (355, 60195), (1065, 20065), (1775, 12039), (4013, 5325)]