21625695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5281}}^1$

素因数の和:5312

約数の個数: 48

約数和(自身を含む): 46143552

約数和(自身を除く): 24517857

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 5281, 15843, 26405, 36967, 47529, 68653, 79215, 110901, 184835, 205959, 237645, 332703, 343265, 480571, 554505, 617877, 1029795, 1441713, 1663515, 2402855, 3089385, 4325139, 7208565, 21625695]

約数ペア:

[(1, 21625695), (3, 7208565), (5, 4325139), (7, 3089385), (9, 2402855), (13, 1663515), (15, 1441713), (21, 1029795), (35, 617877), (39, 554505), (45, 480571), (63, 343265), (65, 332703), (91, 237645), (105, 205959), (117, 184835), (195, 110901), (273, 79215), (315, 68653), (455, 47529), (585, 36967), (819, 26405), (1365, 15843), (4095, 5281)]