21507064

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 41847120

約数和(自身を除く): 20340056

約数列:

[1, 2, 4, 8, 37, 74, 113, 148, 226, 296, 452, 643, 904, 1286, 2572, 4181, 5144, 8362, 16724, 23791, 33448, 47582, 72659, 95164, 145318, 190328, 290636, 581272, 2688383, 5376766, 10753532, 21507064]

約数ペア:

[(1, 21507064), (2, 10753532), (4, 5376766), (8, 2688383), (37, 581272), (74, 290636), (113, 190328), (148, 145318), (226, 95164), (296, 72659), (452, 47582), (643, 33448), (904, 23791), (1286, 16724), (2572, 8362), (4181, 5144)]