20541222

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1009}}^1$

素因数の和:1062

約数の個数: 64

約数和(自身を含む): 50904000

約数和(自身を除く): 30362778

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 87, 117, 174, 234, 261, 351, 377, 522, 702, 754, 783, 1009, 1131, 1566, 2018, 2262, 3027, 3393, 6054, 6786, 9081, 10179, 13117, 18162, 20358, 26234, 27243, 29261, 39351, 54486, 58522, 78702, 87783, 118053, 175566, 236106, 263349, 354159, 380393, 526698, 708318, 760786, 790047, 1141179, 1580094, 2282358, 3423537, 6847074, 10270611, 20541222]

約数ペア:

[(1, 20541222), (2, 10270611), (3, 6847074), (6, 3423537), (9, 2282358), (13, 1580094), (18, 1141179), (26, 790047), (27, 760786), (29, 708318), (39, 526698), (54, 380393), (58, 354159), (78, 263349), (87, 236106), (117, 175566), (174, 118053), (234, 87783), (261, 78702), (351, 58522), (377, 54486), (522, 39351), (702, 29261), (754, 27243), (783, 26234), (1009, 20358), (1131, 18162), (1566, 13117), (2018, 10179), (2262, 9081), (3027, 6786), (3393, 6054)]