21396816

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{21227}}^1$

素因数の和:21248

約数の個数: 60

約数和(自身を含む): 68439072

約数和(自身を除く): 47042256

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 21227, 42454, 63681, 84908, 127362, 148589, 169816, 191043, 254724, 297178, 339632, 382086, 445767, 509448, 594356, 764172, 891534, 1018896, 1188712, 1337301, 1528344, 1783068, 2377424, 2674602, 3056688, 3566136, 5349204, 7132272, 10698408, 21396816]

約数ペア:

[(1, 21396816), (2, 10698408), (3, 7132272), (4, 5349204), (6, 3566136), (7, 3056688), (8, 2674602), (9, 2377424), (12, 1783068), (14, 1528344), (16, 1337301), (18, 1188712), (21, 1018896), (24, 891534), (28, 764172), (36, 594356), (42, 509448), (48, 445767), (56, 382086), (63, 339632), (72, 297178), (84, 254724), (112, 191043), (126, 169816), (144, 148589), (168, 127362), (252, 84908), (336, 63681), (504, 42454), (1008, 21227)]