21113200

素因数分解:

$2^4\times 5^2\times {\mathrm{52783}}^1$

素因数の和:52801

約数の個数: 30

約数和(自身を含む): 50725424

約数和(自身を除く): 29612224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52783, 105566, 211132, 263915, 422264, 527830, 844528, 1055660, 1319575, 2111320, 2639150, 4222640, 5278300, 10556600, 21113200]

約数ペア:

[(1, 21113200), (2, 10556600), (4, 5278300), (5, 4222640), (8, 2639150), (10, 2111320), (16, 1319575), (20, 1055660), (25, 844528), (40, 527830), (50, 422264), (80, 263915), (100, 211132), (200, 105566), (400, 52783)]