19837890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{220421}}^1$

素因数の和:220434

約数の個数: 24

約数和(自身を含む): 51578748

約数和(自身を除く): 31740858

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 220421, 440842, 661263, 1102105, 1322526, 1983789, 2204210, 3306315, 3967578, 6612630, 9918945, 19837890]

約数ペア:

[(1, 19837890), (2, 9918945), (3, 6612630), (5, 3967578), (6, 3306315), (9, 2204210), (10, 1983789), (15, 1322526), (18, 1102105), (30, 661263), (45, 440842), (90, 220421)]