20529306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2671}}^1$

素因数の和:2747

約数の個数: 48

約数和(自身を含む): 51687168

約数和(自身を除く): 31157862

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 61, 63, 122, 126, 183, 366, 427, 549, 854, 1098, 1281, 2562, 2671, 3843, 5342, 7686, 8013, 16026, 18697, 24039, 37394, 48078, 56091, 112182, 162931, 168273, 325862, 336546, 488793, 977586, 1140517, 1466379, 2281034, 2932758, 3421551, 6843102, 10264653, 20529306]

約数ペア:

[(1, 20529306), (2, 10264653), (3, 6843102), (6, 3421551), (7, 2932758), (9, 2281034), (14, 1466379), (18, 1140517), (21, 977586), (42, 488793), (61, 336546), (63, 325862), (122, 168273), (126, 162931), (183, 112182), (366, 56091), (427, 48078), (549, 37394), (854, 24039), (1098, 18697), (1281, 16026), (2562, 8013), (2671, 7686), (3843, 5342)]