21894873

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 41029632

約数和(自身を除く): 19134759

約数列:

[1, 3, 7, 11, 13, 21, 23, 33, 39, 69, 77, 91, 143, 161, 231, 253, 273, 299, 317, 429, 483, 759, 897, 951, 1001, 1771, 2093, 2219, 3003, 3289, 3487, 4121, 5313, 6279, 6657, 7291, 9867, 10461, 12363, 21873, 23023, 24409, 28847, 45331, 51037, 69069, 73227, 80201, 86541, 94783, 135993, 153111, 240603, 284349, 317317, 561407, 663481, 951951, 1042613, 1684221, 1990443, 3127839, 7298291, 21894873]

約数ペア:

[(1, 21894873), (3, 7298291), (7, 3127839), (11, 1990443), (13, 1684221), (21, 1042613), (23, 951951), (33, 663481), (39, 561407), (69, 317317), (77, 284349), (91, 240603), (143, 153111), (161, 135993), (231, 94783), (253, 86541), (273, 80201), (299, 73227), (317, 69069), (429, 51037), (483, 45331), (759, 28847), (897, 24409), (951, 23023), (1001, 21873), (1771, 12363), (2093, 10461), (2219, 9867), (3003, 7291), (3289, 6657), (3487, 6279), (4121, 5313)]