19347952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{557}}^1$

素因数の和:745

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 21336944

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 167, 208, 334, 557, 668, 1114, 1336, 2171, 2228, 2672, 4342, 4456, 7241, 8684, 8912, 14482, 17368, 28964, 34736, 57928, 93019, 115856, 186038, 372076, 744152, 1209247, 1488304, 2418494, 4836988, 9673976, 19347952]

約数ペア:

[(1, 19347952), (2, 9673976), (4, 4836988), (8, 2418494), (13, 1488304), (16, 1209247), (26, 744152), (52, 372076), (104, 186038), (167, 115856), (208, 93019), (334, 57928), (557, 34736), (668, 28964), (1114, 17368), (1336, 14482), (2171, 8912), (2228, 8684), (2672, 7241), (4342, 4456)]