21528216

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15737}}^1$

素因数の和:15768

約数の個数: 48

約数和(自身を含む): 61378200

約数和(自身を除く): 39849984

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15737, 31474, 47211, 62948, 94422, 125896, 141633, 188844, 283266, 299003, 377688, 566532, 598006, 897009, 1133064, 1196012, 1794018, 2392024, 2691027, 3588036, 5382054, 7176072, 10764108, 21528216]

約数ペア:

[(1, 21528216), (2, 10764108), (3, 7176072), (4, 5382054), (6, 3588036), (8, 2691027), (9, 2392024), (12, 1794018), (18, 1196012), (19, 1133064), (24, 897009), (36, 598006), (38, 566532), (57, 377688), (72, 299003), (76, 283266), (114, 188844), (152, 141633), (171, 125896), (228, 94422), (342, 62948), (456, 47211), (684, 31474), (1368, 15737)]