21107936

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{233}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 44226000

約数和(自身を除く): 23118064

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 149, 152, 233, 298, 304, 466, 596, 608, 932, 1192, 1864, 2384, 2831, 3728, 4427, 4768, 5662, 7456, 8854, 11324, 17708, 22648, 34717, 35416, 45296, 69434, 70832, 90592, 138868, 141664, 277736, 555472, 659623, 1110944, 1319246, 2638492, 5276984, 10553968, 21107936]

約数ペア:

[(1, 21107936), (2, 10553968), (4, 5276984), (8, 2638492), (16, 1319246), (19, 1110944), (32, 659623), (38, 555472), (76, 277736), (149, 141664), (152, 138868), (233, 90592), (298, 70832), (304, 69434), (466, 45296), (596, 35416), (608, 34717), (932, 22648), (1192, 17708), (1864, 11324), (2384, 8854), (2831, 7456), (3728, 5662), (4427, 4768)]