20213102

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20429458

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 47, 91, 94, 119, 139, 182, 221, 238, 278, 329, 442, 611, 658, 799, 973, 1222, 1547, 1598, 1807, 1946, 2363, 3094, 3614, 4277, 4726, 5593, 6533, 8554, 10387, 11186, 12649, 13066, 16541, 20774, 25298, 30719, 33082, 45731, 61438, 72709, 84929, 91462, 111061, 145418, 169858, 215033, 222122, 430066, 594503, 777427, 1189006, 1443793, 1554854, 2887586, 10106551, 20213102]

約数ペア:

[(1, 20213102), (2, 10106551), (7, 2887586), (13, 1554854), (14, 1443793), (17, 1189006), (26, 777427), (34, 594503), (47, 430066), (91, 222122), (94, 215033), (119, 169858), (139, 145418), (182, 111061), (221, 91462), (238, 84929), (278, 72709), (329, 61438), (442, 45731), (611, 33082), (658, 30719), (799, 25298), (973, 20774), (1222, 16541), (1547, 13066), (1598, 12649), (1807, 11186), (1946, 10387), (2363, 8554), (3094, 6533), (3614, 5593), (4277, 4726)]