21386750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 50791104

約数和(自身を除く): 29404354

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 101, 110, 121, 125, 154, 175, 202, 242, 250, 275, 350, 385, 505, 550, 605, 707, 770, 847, 875, 1010, 1111, 1210, 1375, 1414, 1694, 1750, 1925, 2222, 2525, 2750, 3025, 3535, 3850, 4235, 5050, 5555, 6050, 7070, 7777, 8470, 9625, 11110, 12221, 12625, 15125, 15554, 17675, 19250, 21175, 24442, 25250, 27775, 30250, 35350, 38885, 42350, 55550, 61105, 77770, 85547, 88375, 105875, 122210, 138875, 171094, 176750, 194425, 211750, 277750, 305525, 388850, 427735, 611050, 855470, 972125, 1527625, 1944250, 2138675, 3055250, 4277350, 10693375, 21386750]

約数ペア:

[(1, 21386750), (2, 10693375), (5, 4277350), (7, 3055250), (10, 2138675), (11, 1944250), (14, 1527625), (22, 972125), (25, 855470), (35, 611050), (50, 427735), (55, 388850), (70, 305525), (77, 277750), (101, 211750), (110, 194425), (121, 176750), (125, 171094), (154, 138875), (175, 122210), (202, 105875), (242, 88375), (250, 85547), (275, 77770), (350, 61105), (385, 55550), (505, 42350), (550, 38885), (605, 35350), (707, 30250), (770, 27775), (847, 25250), (875, 24442), (1010, 21175), (1111, 19250), (1210, 17675), (1375, 15554), (1414, 15125), (1694, 12625), (1750, 12221), (1925, 11110), (2222, 9625), (2525, 8470), (2750, 7777), (3025, 7070), (3535, 6050), (3850, 5555), (4235, 5050)]