20919567064

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{697133}}^1$

素因数の和:697192

約数の個数: 48

約数和(自身を含む): 44505034560

約数和(自身を除く): 23585467496

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 121, 124, 242, 248, 341, 484, 682, 968, 1364, 2728, 3751, 7502, 15004, 30008, 697133, 1394266, 2788532, 5577064, 7668463, 15336926, 21611123, 30673852, 43222246, 61347704, 84353093, 86444492, 168706186, 172888984, 237722353, 337412372, 475444706, 674824744, 950889412, 1901778824, 2614945883, 5229891766, 10459783532, 20919567064]

約数ペア:

[(1, 20919567064), (2, 10459783532), (4, 5229891766), (8, 2614945883), (11, 1901778824), (22, 950889412), (31, 674824744), (44, 475444706), (62, 337412372), (88, 237722353), (121, 172888984), (124, 168706186), (242, 86444492), (248, 84353093), (341, 61347704), (484, 43222246), (682, 30673852), (968, 21611123), (1364, 15336926), (2728, 7668463), (3751, 5577064), (7502, 2788532), (15004, 1394266), (30008, 697133)]