21213918

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5639}}^1$

素因数の和:5677

約数の個数: 48

約数和(自身を含む): 52790400

約数和(自身を除く): 31576482

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 171, 198, 209, 342, 418, 627, 1254, 1881, 3762, 5639, 11278, 16917, 33834, 50751, 62029, 101502, 107141, 124058, 186087, 214282, 321423, 372174, 558261, 642846, 964269, 1116522, 1178551, 1928538, 2357102, 3535653, 7071306, 10606959, 21213918]

約数ペア:

[(1, 21213918), (2, 10606959), (3, 7071306), (6, 3535653), (9, 2357102), (11, 1928538), (18, 1178551), (19, 1116522), (22, 964269), (33, 642846), (38, 558261), (57, 372174), (66, 321423), (99, 214282), (114, 186087), (171, 124058), (198, 107141), (209, 101502), (342, 62029), (418, 50751), (627, 33834), (1254, 16917), (1881, 11278), (3762, 5639)]