21907700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 50663424

約数和(自身を除く): 28755724

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 37, 50, 62, 74, 100, 124, 148, 155, 185, 191, 310, 370, 382, 620, 740, 764, 775, 925, 955, 1147, 1550, 1850, 1910, 2294, 3100, 3700, 3820, 4588, 4775, 5735, 5921, 7067, 9550, 11470, 11842, 14134, 19100, 22940, 23684, 28268, 28675, 29605, 35335, 57350, 59210, 70670, 114700, 118420, 141340, 148025, 176675, 219077, 296050, 353350, 438154, 592100, 706700, 876308, 1095385, 2190770, 4381540, 5476925, 10953850, 21907700]

約数ペア:

[(1, 21907700), (2, 10953850), (4, 5476925), (5, 4381540), (10, 2190770), (20, 1095385), (25, 876308), (31, 706700), (37, 592100), (50, 438154), (62, 353350), (74, 296050), (100, 219077), (124, 176675), (148, 148025), (155, 141340), (185, 118420), (191, 114700), (310, 70670), (370, 59210), (382, 57350), (620, 35335), (740, 29605), (764, 28675), (775, 28268), (925, 23684), (955, 22940), (1147, 19100), (1550, 14134), (1850, 11842), (1910, 11470), (2294, 9550), (3100, 7067), (3700, 5921), (3820, 5735), (4588, 4775)]