21206808

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{6011}}^1$

素因数の和:6037

約数の個数: 72

約数和(自身を含む): 66823380

約数和(自身を除く): 45616572

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 6011, 12022, 18033, 24044, 36066, 42077, 48088, 54099, 72132, 84154, 108198, 126231, 144264, 168308, 216396, 252462, 294539, 336616, 378693, 432792, 504924, 589078, 757386, 883617, 1009848, 1178156, 1514772, 1767234, 2356312, 2650851, 3029544, 3534468, 5301702, 7068936, 10603404, 21206808]

約数ペア:

[(1, 21206808), (2, 10603404), (3, 7068936), (4, 5301702), (6, 3534468), (7, 3029544), (8, 2650851), (9, 2356312), (12, 1767234), (14, 1514772), (18, 1178156), (21, 1009848), (24, 883617), (28, 757386), (36, 589078), (42, 504924), (49, 432792), (56, 378693), (63, 336616), (72, 294539), (84, 252462), (98, 216396), (126, 168308), (147, 144264), (168, 126231), (196, 108198), (252, 84154), (294, 72132), (392, 54099), (441, 48088), (504, 42077), (588, 36066), (882, 24044), (1176, 18033), (1764, 12022), (3528, 6011)]