21899800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{8423}}^1$

素因数の和:8452

約数の個数: 48

約数和(自身を含む): 54840240

約数和(自身を除く): 32940440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 8423, 16846, 33692, 42115, 67384, 84230, 109499, 168460, 210575, 218998, 336920, 421150, 437996, 547495, 842300, 875992, 1094990, 1684600, 2189980, 2737475, 4379960, 5474950, 10949900, 21899800]

約数ペア:

[(1, 21899800), (2, 10949900), (4, 5474950), (5, 4379960), (8, 2737475), (10, 2189980), (13, 1684600), (20, 1094990), (25, 875992), (26, 842300), (40, 547495), (50, 437996), (52, 421150), (65, 336920), (100, 218998), (104, 210575), (130, 168460), (200, 109499), (260, 84230), (325, 67384), (520, 42115), (650, 33692), (1300, 16846), (2600, 8423)]