19673862

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:473

約数の個数: 64

約数和(自身を含む): 46194624

約数和(自身を除く): 26520762

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 37, 39, 51, 74, 78, 102, 111, 221, 222, 401, 442, 481, 629, 663, 802, 962, 1203, 1258, 1326, 1443, 1887, 2406, 2886, 3774, 5213, 6817, 8177, 10426, 13634, 14837, 15639, 16354, 20451, 24531, 29674, 31278, 40902, 44511, 49062, 88621, 89022, 177242, 192881, 252229, 265863, 385762, 504458, 531726, 578643, 756687, 1157286, 1513374, 3278977, 6557954, 9836931, 19673862]

約数ペア:

[(1, 19673862), (2, 9836931), (3, 6557954), (6, 3278977), (13, 1513374), (17, 1157286), (26, 756687), (34, 578643), (37, 531726), (39, 504458), (51, 385762), (74, 265863), (78, 252229), (102, 192881), (111, 177242), (221, 89022), (222, 88621), (401, 49062), (442, 44511), (481, 40902), (629, 31278), (663, 29674), (802, 24531), (962, 20451), (1203, 16354), (1258, 15639), (1326, 14837), (1443, 13634), (1887, 10426), (2406, 8177), (2886, 6817), (3774, 5213)]