19387472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1123}}^1$

素因数の和:1227

約数の個数: 40

約数和(自身を含む): 40976544

約数和(自身を除く): 21589072

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 208, 332, 664, 1079, 1123, 1328, 2158, 2246, 4316, 4492, 8632, 8984, 14599, 17264, 17968, 29198, 58396, 93209, 116792, 186418, 233584, 372836, 745672, 1211717, 1491344, 2423434, 4846868, 9693736, 19387472]

約数ペア:

[(1, 19387472), (2, 9693736), (4, 4846868), (8, 2423434), (13, 1491344), (16, 1211717), (26, 745672), (52, 372836), (83, 233584), (104, 186418), (166, 116792), (208, 93209), (332, 58396), (664, 29198), (1079, 17968), (1123, 17264), (1328, 14599), (2158, 8984), (2246, 8632), (4316, 4492)]