21259700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{251}}^1$

素因数の和:294

約数の個数: 108

約数和(自身を含む): 58183776

約数和(自身を除く): 36924076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 121, 140, 154, 175, 220, 242, 251, 275, 308, 350, 385, 484, 502, 550, 605, 700, 770, 847, 1004, 1100, 1210, 1255, 1540, 1694, 1757, 1925, 2420, 2510, 2761, 3025, 3388, 3514, 3850, 4235, 5020, 5522, 6050, 6275, 7028, 7700, 8470, 8785, 11044, 12100, 12550, 13805, 16940, 17570, 19327, 21175, 25100, 27610, 30371, 35140, 38654, 42350, 43925, 55220, 60742, 69025, 77308, 84700, 87850, 96635, 121484, 138050, 151855, 175700, 193270, 212597, 276100, 303710, 386540, 425194, 483175, 607420, 759275, 850388, 966350, 1062985, 1518550, 1932700, 2125970, 3037100, 4251940, 5314925, 10629850, 21259700]

約数ペア:

[(1, 21259700), (2, 10629850), (4, 5314925), (5, 4251940), (7, 3037100), (10, 2125970), (11, 1932700), (14, 1518550), (20, 1062985), (22, 966350), (25, 850388), (28, 759275), (35, 607420), (44, 483175), (50, 425194), (55, 386540), (70, 303710), (77, 276100), (100, 212597), (110, 193270), (121, 175700), (140, 151855), (154, 138050), (175, 121484), (220, 96635), (242, 87850), (251, 84700), (275, 77308), (308, 69025), (350, 60742), (385, 55220), (484, 43925), (502, 42350), (550, 38654), (605, 35140), (700, 30371), (770, 27610), (847, 25100), (1004, 21175), (1100, 19327), (1210, 17570), (1255, 16940), (1540, 13805), (1694, 12550), (1757, 12100), (1925, 11044), (2420, 8785), (2510, 8470), (2761, 7700), (3025, 7028), (3388, 6275), (3514, 6050), (3850, 5522), (4235, 5020)]