21857253.000000000

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4057}}^1$

素因数の和:4163

約数の個数: 72

約数和(自身を含む): 317010960

約数和(自身を除く): 208689060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 89, 100, 150, 178, 267, 300, 356, 445, 534, 890, 1068, 1335, 1780, 2225, 2670, 4057, 4450, 5340, 6675, 8114, 8900, 12171, 13350, 16228, 20285, 24342, 26700, 40570, 48684, 60855, 81140, 101425, 121710, 202850, 243420, 304275, 361073, 405700, 608550, 722146, 1083219, 1217100, 1444292, 1805365, 2166438, 3610730, 4332876, 5416095, 7221460, 9026825, 10832190, 18053650, 21664380, 27080475, 36107300, 54160950, 108321900]

約数ペア:

[(1, 108321900), (2, 54160950), (3, 36107300), (4, 27080475), (5, 21664380), (6, 18053650), (10, 10832190), (12, 9026825), (15, 7221460), (20, 5416095), (25, 4332876), (30, 3610730), (50, 2166438), (60, 1805365), (75, 1444292), (89, 1217100), (100, 1083219), (150, 722146), (178, 608550), (267, 405700), (300, 361073), (356, 304275), (445, 243420), (534, 202850), (890, 121710), (1068, 101425), (1335, 81140), (1780, 60855), (2225, 48684), (2670, 40570), (4057, 26700), (4450, 24342), (5340, 20285), (6675, 16228), (8114, 13350), (8900, 12171)]