21313616

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 43163904

約数和(自身を除く): 21850288

約数列:

[1, 2, 4, 8, 16, 31, 62, 97, 124, 194, 248, 388, 443, 496, 776, 886, 1552, 1772, 3007, 3544, 6014, 7088, 12028, 13733, 24056, 27466, 42971, 48112, 54932, 85942, 109864, 171884, 219728, 343768, 687536, 1332101, 2664202, 5328404, 10656808, 21313616]

約数ペア:

[(1, 21313616), (2, 10656808), (4, 5328404), (8, 2664202), (16, 1332101), (31, 687536), (62, 343768), (97, 219728), (124, 171884), (194, 109864), (248, 85942), (388, 54932), (443, 48112), (496, 42971), (776, 27466), (886, 24056), (1552, 13733), (1772, 12028), (3007, 7088), (3544, 6014)]