20973796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 19668764

約数列:

[1, 2, 4, 19, 38, 41, 53, 76, 82, 106, 127, 164, 212, 254, 508, 779, 1007, 1558, 2014, 2173, 2413, 3116, 4028, 4346, 4826, 5207, 6731, 8692, 9652, 10414, 13462, 20828, 26924, 41287, 82574, 98933, 127889, 165148, 197866, 255778, 275971, 395732, 511556, 551942, 1103884, 5243449, 10486898, 20973796]

約数ペア:

[(1, 20973796), (2, 10486898), (4, 5243449), (19, 1103884), (38, 551942), (41, 511556), (53, 395732), (76, 275971), (82, 255778), (106, 197866), (127, 165148), (164, 127889), (212, 98933), (254, 82574), (508, 41287), (779, 26924), (1007, 20828), (1558, 13462), (2014, 10414), (2173, 9652), (2413, 8692), (3116, 6731), (4028, 5207), (4346, 4826)]