19909167954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{87383}}^1$

素因数の和:87551

約数の個数: 64

約数和(自身を含む): 45098532864

約数和(自身を除く): 25189364910

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 127, 138, 254, 299, 381, 598, 762, 897, 1651, 1794, 2921, 3302, 4953, 5842, 8763, 9906, 17526, 37973, 75946, 87383, 113919, 174766, 227838, 262149, 524298, 1135979, 2009809, 2271958, 3407937, 4019618, 6029427, 6815874, 11097641, 12058854, 22195282, 26127517, 33292923, 52255034, 66585846, 78382551, 144269333, 156765102, 255245743, 288538666, 432807999, 510491486, 765737229, 865615998, 1531474458, 3318194659, 6636389318, 9954583977, 19909167954]

約数ペア:

[(1, 19909167954), (2, 9954583977), (3, 6636389318), (6, 3318194659), (13, 1531474458), (23, 865615998), (26, 765737229), (39, 510491486), (46, 432807999), (69, 288538666), (78, 255245743), (127, 156765102), (138, 144269333), (254, 78382551), (299, 66585846), (381, 52255034), (598, 33292923), (762, 26127517), (897, 22195282), (1651, 12058854), (1794, 11097641), (2921, 6815874), (3302, 6029427), (4953, 4019618), (5842, 3407937), (8763, 2271958), (9906, 2009809), (17526, 1135979), (37973, 524298), (75946, 262149), (87383, 227838), (113919, 174766)]