19907524

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{601}}^1$

素因数の和:645

約数の個数: 54

約数和(自身を含む): 43956234

約数和(自身を除く): 24048710

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 169, 182, 196, 338, 364, 601, 637, 676, 1183, 1202, 1274, 2366, 2404, 2548, 4207, 4732, 7813, 8281, 8414, 15626, 16562, 16828, 29449, 31252, 33124, 54691, 58898, 101569, 109382, 117796, 203138, 218764, 382837, 406276, 710983, 765674, 1421966, 1531348, 2843932, 4976881, 9953762, 19907524]

約数ペア:

[(1, 19907524), (2, 9953762), (4, 4976881), (7, 2843932), (13, 1531348), (14, 1421966), (26, 765674), (28, 710983), (49, 406276), (52, 382837), (91, 218764), (98, 203138), (169, 117796), (182, 109382), (196, 101569), (338, 58898), (364, 54691), (601, 33124), (637, 31252), (676, 29449), (1183, 16828), (1202, 16562), (1274, 15626), (2366, 8414), (2404, 8281), (2548, 7813), (4207, 4732)]