21417228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2297}}^1$

素因数の和:2351

約数の個数: 72

約数和(自身を含む): 63571872

約数和(自身を除く): 42154644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2297, 2331, 3108, 4594, 4662, 6891, 9188, 9324, 13782, 16079, 20673, 27564, 32158, 41346, 48237, 64316, 82692, 84989, 96474, 144711, 169978, 192948, 254967, 289422, 339956, 509934, 578844, 594923, 764901, 1019868, 1189846, 1529802, 1784769, 2379692, 3059604, 3569538, 5354307, 7139076, 10708614, 21417228]

約数ペア:

[(1, 21417228), (2, 10708614), (3, 7139076), (4, 5354307), (6, 3569538), (7, 3059604), (9, 2379692), (12, 1784769), (14, 1529802), (18, 1189846), (21, 1019868), (28, 764901), (36, 594923), (37, 578844), (42, 509934), (63, 339956), (74, 289422), (84, 254967), (111, 192948), (126, 169978), (148, 144711), (222, 96474), (252, 84989), (259, 82692), (333, 64316), (444, 48237), (518, 41346), (666, 32158), (777, 27564), (1036, 20673), (1332, 16079), (1554, 13782), (2297, 9324), (2331, 9188), (3108, 6891), (4594, 4662)]