21080928

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19963}}^1$

素因数の和:19987

約数の個数: 48

約数和(自身を含む): 60371136

約数和(自身を除く): 39290208

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 132, 176, 264, 352, 528, 1056, 19963, 39926, 59889, 79852, 119778, 159704, 219593, 239556, 319408, 439186, 479112, 638816, 658779, 878372, 958224, 1317558, 1756744, 1916448, 2635116, 3513488, 5270232, 7026976, 10540464, 21080928]

約数ペア:

[(1, 21080928), (2, 10540464), (3, 7026976), (4, 5270232), (6, 3513488), (8, 2635116), (11, 1916448), (12, 1756744), (16, 1317558), (22, 958224), (24, 878372), (32, 658779), (33, 638816), (44, 479112), (48, 439186), (66, 319408), (88, 239556), (96, 219593), (132, 159704), (176, 119778), (264, 79852), (352, 59889), (528, 39926), (1056, 19963)]