21701116

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 42219520

約数和(自身を除く): 20518404

約数列:

[1, 2, 4, 19, 31, 38, 61, 62, 76, 122, 124, 151, 244, 302, 589, 604, 1159, 1178, 1891, 2318, 2356, 2869, 3782, 4636, 4681, 5738, 7564, 9211, 9362, 11476, 18422, 18724, 35929, 36844, 71858, 88939, 143716, 175009, 177878, 285541, 350018, 355756, 571082, 700036, 1142164, 5425279, 10850558, 21701116]

約数ペア:

[(1, 21701116), (2, 10850558), (4, 5425279), (19, 1142164), (31, 700036), (38, 571082), (61, 355756), (62, 350018), (76, 285541), (122, 177878), (124, 175009), (151, 143716), (244, 88939), (302, 71858), (589, 36844), (604, 35929), (1159, 18724), (1178, 18422), (1891, 11476), (2318, 9362), (2356, 9211), (2869, 7564), (3782, 5738), (4636, 4681)]