21163625

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 32333184

約数和(自身を除く): 11169559

約数列:

[1, 5, 7, 19, 25, 35, 67, 95, 125, 133, 175, 335, 361, 469, 475, 665, 875, 1273, 1675, 1805, 2345, 2375, 2527, 3325, 6365, 8375, 8911, 9025, 11725, 12635, 16625, 24187, 31825, 44555, 45125, 58625, 63175, 120935, 159125, 169309, 222775, 315875, 604675, 846545, 1113875, 3023375, 4232725, 21163625]

約数ペア:

[(1, 21163625), (5, 4232725), (7, 3023375), (19, 1113875), (25, 846545), (35, 604675), (67, 315875), (95, 222775), (125, 169309), (133, 159125), (175, 120935), (335, 63175), (361, 58625), (469, 45125), (475, 44555), (665, 31825), (875, 24187), (1273, 16625), (1675, 12635), (1805, 11725), (2345, 9025), (2375, 8911), (2527, 8375), (3325, 6365)]