21309540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:581

約数の個数: 96

約数和(自身を含む): 68947200

約数和(自身を除く): 47637660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 420, 449, 452, 565, 678, 791, 898, 1130, 1347, 1356, 1582, 1695, 1796, 2245, 2260, 2373, 2694, 3143, 3164, 3390, 3955, 4490, 4746, 5388, 6286, 6735, 6780, 7910, 8980, 9429, 9492, 11865, 12572, 13470, 15715, 15820, 18858, 23730, 26940, 31430, 37716, 47145, 47460, 50737, 62860, 94290, 101474, 152211, 188580, 202948, 253685, 304422, 355159, 507370, 608844, 710318, 761055, 1014740, 1065477, 1420636, 1522110, 1775795, 2130954, 3044220, 3551590, 4261908, 5327385, 7103180, 10654770, 21309540]

約数ペア:

[(1, 21309540), (2, 10654770), (3, 7103180), (4, 5327385), (5, 4261908), (6, 3551590), (7, 3044220), (10, 2130954), (12, 1775795), (14, 1522110), (15, 1420636), (20, 1065477), (21, 1014740), (28, 761055), (30, 710318), (35, 608844), (42, 507370), (60, 355159), (70, 304422), (84, 253685), (105, 202948), (113, 188580), (140, 152211), (210, 101474), (226, 94290), (339, 62860), (420, 50737), (449, 47460), (452, 47145), (565, 37716), (678, 31430), (791, 26940), (898, 23730), (1130, 18858), (1347, 15820), (1356, 15715), (1582, 13470), (1695, 12572), (1796, 11865), (2245, 9492), (2260, 9429), (2373, 8980), (2694, 7910), (3143, 6780), (3164, 6735), (3390, 6286), (3955, 5388), (4490, 4746)]