21957900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1451

約数の個数: 72

約数和(自身を含む): 64777104

約数和(自身を除く): 42819204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 150, 159, 212, 265, 300, 318, 530, 636, 795, 1060, 1325, 1381, 1590, 2650, 2762, 3180, 3975, 4143, 5300, 5524, 6905, 7950, 8286, 13810, 15900, 16572, 20715, 27620, 34525, 41430, 69050, 73193, 82860, 103575, 138100, 146386, 207150, 219579, 292772, 365965, 414300, 439158, 731930, 878316, 1097895, 1463860, 1829825, 2195790, 3659650, 4391580, 5489475, 7319300, 10978950, 21957900]

約数ペア:

[(1, 21957900), (2, 10978950), (3, 7319300), (4, 5489475), (5, 4391580), (6, 3659650), (10, 2195790), (12, 1829825), (15, 1463860), (20, 1097895), (25, 878316), (30, 731930), (50, 439158), (53, 414300), (60, 365965), (75, 292772), (100, 219579), (106, 207150), (150, 146386), (159, 138100), (212, 103575), (265, 82860), (300, 73193), (318, 69050), (530, 41430), (636, 34525), (795, 27620), (1060, 20715), (1325, 16572), (1381, 15900), (1590, 13810), (2650, 8286), (2762, 7950), (3180, 6905), (3975, 5524), (4143, 5300)]