21195408

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33967}}^1$

素因数の和:33991

約数の個数: 40

約数和(自身を含む): 58968448

約数和(自身を除く): 37773040

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33967, 67934, 101901, 135868, 203802, 271736, 407604, 441571, 543472, 815208, 883142, 1324713, 1630416, 1766284, 2649426, 3532568, 5298852, 7065136, 10597704, 21195408]

約数ペア:

[(1, 21195408), (2, 10597704), (3, 7065136), (4, 5298852), (6, 3532568), (8, 2649426), (12, 1766284), (13, 1630416), (16, 1324713), (24, 883142), (26, 815208), (39, 543472), (48, 441571), (52, 407604), (78, 271736), (104, 203802), (156, 135868), (208, 101901), (312, 67934), (624, 33967)]