21000481236

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{2377}}^1\times {\mathrm{35059}}^1$

素因数の和:37453

約数の個数: 72

約数和(自身を含む): 60695311040

約数和(自身を除く): 39694829804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 2377, 4754, 7131, 9508, 14262, 16639, 21393, 28524, 33278, 35059, 42786, 49917, 66556, 70118, 85572, 99834, 105177, 140236, 149751, 199668, 210354, 245413, 299502, 315531, 420708, 490826, 599004, 631062, 736239, 981652, 1262124, 1472478, 2208717, 2944956, 4417434, 8834868, 83335243, 166670486, 250005729, 333340972, 500011458, 583346701, 750017187, 1000022916, 1166693402, 1500034374, 1750040103, 2333386804, 3000068748, 3500080206, 5250120309, 7000160412, 10500240618, 21000481236]

約数ペア:

[(1, 21000481236), (2, 10500240618), (3, 7000160412), (4, 5250120309), (6, 3500080206), (7, 3000068748), (9, 2333386804), (12, 1750040103), (14, 1500034374), (18, 1166693402), (21, 1000022916), (28, 750017187), (36, 583346701), (42, 500011458), (63, 333340972), (84, 250005729), (126, 166670486), (252, 83335243), (2377, 8834868), (4754, 4417434), (7131, 2944956), (9508, 2208717), (14262, 1472478), (16639, 1262124), (21393, 981652), (28524, 736239), (33278, 631062), (35059, 599004), (42786, 490826), (49917, 420708), (66556, 315531), (70118, 299502), (85572, 245413), (99834, 210354), (105177, 199668), (140236, 149751)]