21104688

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{39971}}^1$

素因数の和:39993

約数の個数: 40

約数和(自身を含む): 59478336

約数和(自身を除く): 38373648

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528, 39971, 79942, 119913, 159884, 239826, 319768, 439681, 479652, 639536, 879362, 959304, 1319043, 1758724, 1918608, 2638086, 3517448, 5276172, 7034896, 10552344, 21104688]

約数ペア:

[(1, 21104688), (2, 10552344), (3, 7034896), (4, 5276172), (6, 3517448), (8, 2638086), (11, 1918608), (12, 1758724), (16, 1319043), (22, 959304), (24, 879362), (33, 639536), (44, 479652), (48, 439681), (66, 319768), (88, 239826), (132, 159884), (176, 119913), (264, 79942), (528, 39971)]