20955616

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1609}}^1$

素因数の和:1667

約数の個数: 48

約数和(自身を含む): 46252080

約数和(自身を除く): 25296464

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1609, 1628, 3218, 3256, 6436, 6512, 12872, 13024, 17699, 25744, 35398, 51488, 59533, 70796, 119066, 141592, 238132, 283184, 476264, 566368, 654863, 952528, 1309726, 1905056, 2619452, 5238904, 10477808, 20955616]

約数ペア:

[(1, 20955616), (2, 10477808), (4, 5238904), (8, 2619452), (11, 1905056), (16, 1309726), (22, 952528), (32, 654863), (37, 566368), (44, 476264), (74, 283184), (88, 238132), (148, 141592), (176, 119066), (296, 70796), (352, 59533), (407, 51488), (592, 35398), (814, 25744), (1184, 17699), (1609, 13024), (1628, 12872), (3218, 6512), (3256, 6436)]