21240708

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1579}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 53088000

約数和(自身を除く): 31847292

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 59, 76, 114, 118, 177, 228, 236, 354, 708, 1121, 1579, 2242, 3158, 3363, 4484, 4737, 6316, 6726, 9474, 13452, 18948, 30001, 60002, 90003, 93161, 120004, 180006, 186322, 279483, 360012, 372644, 558966, 1117932, 1770059, 3540118, 5310177, 7080236, 10620354, 21240708]

約数ペア:

[(1, 21240708), (2, 10620354), (3, 7080236), (4, 5310177), (6, 3540118), (12, 1770059), (19, 1117932), (38, 558966), (57, 372644), (59, 360012), (76, 279483), (114, 186322), (118, 180006), (177, 120004), (228, 93161), (236, 90003), (354, 60002), (708, 30001), (1121, 18948), (1579, 13452), (2242, 9474), (3158, 6726), (3363, 6316), (4484, 4737)]