21411100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 49996800

約数和(自身を除く): 28585700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 59, 76, 95, 100, 118, 190, 191, 236, 295, 380, 382, 475, 590, 764, 950, 955, 1121, 1180, 1475, 1900, 1910, 2242, 2950, 3629, 3820, 4484, 4775, 5605, 5900, 7258, 9550, 11210, 11269, 14516, 18145, 19100, 22420, 22538, 28025, 36290, 45076, 56050, 56345, 72580, 90725, 112100, 112690, 181450, 214111, 225380, 281725, 362900, 428222, 563450, 856444, 1070555, 1126900, 2141110, 4282220, 5352775, 10705550, 21411100]

約数ペア:

[(1, 21411100), (2, 10705550), (4, 5352775), (5, 4282220), (10, 2141110), (19, 1126900), (20, 1070555), (25, 856444), (38, 563450), (50, 428222), (59, 362900), (76, 281725), (95, 225380), (100, 214111), (118, 181450), (190, 112690), (191, 112100), (236, 90725), (295, 72580), (380, 56345), (382, 56050), (475, 45076), (590, 36290), (764, 28025), (950, 22538), (955, 22420), (1121, 19100), (1180, 18145), (1475, 14516), (1900, 11269), (1910, 11210), (2242, 9550), (2950, 7258), (3629, 5900), (3820, 5605), (4484, 4775)]