21090156804

素因数分解:

$2^2\times 3^2\times {\mathrm{449}}^1\times {\mathrm{881}}^1\times {\mathrm{1481}}^1$

素因数の和:2821

約数の個数: 72

約数和(自身を含む): 53526727800

約数和(自身を除く): 32436570996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 449, 881, 898, 1347, 1481, 1762, 1796, 2643, 2694, 2962, 3524, 4041, 4443, 5286, 5388, 5924, 7929, 8082, 8886, 10572, 13329, 15858, 16164, 17772, 26658, 31716, 53316, 395569, 664969, 791138, 1186707, 1304761, 1329938, 1582276, 1994907, 2373414, 2609522, 2659876, 3560121, 3914283, 3989814, 4746828, 5219044, 5984721, 7120242, 7828566, 7979628, 11742849, 11969442, 14240484, 15657132, 23485698, 23938884, 46971396, 585837689, 1171675378, 1757513067, 2343350756, 3515026134, 5272539201, 7030052268, 10545078402, 21090156804]

約数ペア:

[(1, 21090156804), (2, 10545078402), (3, 7030052268), (4, 5272539201), (6, 3515026134), (9, 2343350756), (12, 1757513067), (18, 1171675378), (36, 585837689), (449, 46971396), (881, 23938884), (898, 23485698), (1347, 15657132), (1481, 14240484), (1762, 11969442), (1796, 11742849), (2643, 7979628), (2694, 7828566), (2962, 7120242), (3524, 5984721), (4041, 5219044), (4443, 4746828), (5286, 3989814), (5388, 3914283), (5924, 3560121), (7929, 2659876), (8082, 2609522), (8886, 2373414), (10572, 1994907), (13329, 1582276), (15858, 1329938), (16164, 1304761), (17772, 1186707), (26658, 791138), (31716, 664969), (53316, 395569)]