21015204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{5323}}^1$

素因数の和:5384

約数の個数: 48

約数和(自身を含む): 57243648

約数和(自身を除く): 36228444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 5323, 10646, 15969, 21292, 31938, 37261, 63876, 74522, 111783, 149044, 223566, 250181, 447132, 500362, 750543, 1000724, 1501086, 1751267, 3002172, 3502534, 5253801, 7005068, 10507602, 21015204]

約数ペア:

[(1, 21015204), (2, 10507602), (3, 7005068), (4, 5253801), (6, 3502534), (7, 3002172), (12, 1751267), (14, 1501086), (21, 1000724), (28, 750543), (42, 500362), (47, 447132), (84, 250181), (94, 223566), (141, 149044), (188, 111783), (282, 74522), (329, 63876), (564, 37261), (658, 31938), (987, 21292), (1316, 15969), (1974, 10646), (3948, 5323)]