19707664

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 39640320

約数和(自身を除く): 19932656

約数列:

[1, 2, 4, 8, 16, 47, 73, 94, 146, 188, 292, 359, 376, 584, 718, 752, 1168, 1436, 2872, 3431, 5744, 6862, 13724, 16873, 26207, 27448, 33746, 52414, 54896, 67492, 104828, 134984, 209656, 269968, 419312, 1231729, 2463458, 4926916, 9853832, 19707664]

約数ペア:

[(1, 19707664), (2, 9853832), (4, 4926916), (8, 2463458), (16, 1231729), (47, 419312), (73, 269968), (94, 209656), (146, 134984), (188, 104828), (292, 67492), (359, 54896), (376, 52414), (584, 33746), (718, 27448), (752, 26207), (1168, 16873), (1436, 13724), (2872, 6862), (3431, 5744)]