20828804556

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{88337}}^1$

素因数の和:88759

約数の個数: 72

約数和(自身を含む): 56676954096

約数和(自身を除く): 35848149540

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 401, 588, 802, 1203, 1604, 2406, 2807, 4812, 5614, 8421, 11228, 16842, 19649, 33684, 39298, 58947, 78596, 88337, 117894, 176674, 235788, 265011, 353348, 530022, 618359, 1060044, 1236718, 1855077, 2473436, 3710154, 4328513, 7420308, 8657026, 12985539, 17314052, 25971078, 35423137, 51942156, 70846274, 106269411, 141692548, 212538822, 247961959, 425077644, 495923918, 743885877, 991847836, 1487771754, 1735733713, 2975543508, 3471467426, 5207201139, 6942934852, 10414402278, 20828804556]

約数ペア:

[(1, 20828804556), (2, 10414402278), (3, 6942934852), (4, 5207201139), (6, 3471467426), (7, 2975543508), (12, 1735733713), (14, 1487771754), (21, 991847836), (28, 743885877), (42, 495923918), (49, 425077644), (84, 247961959), (98, 212538822), (147, 141692548), (196, 106269411), (294, 70846274), (401, 51942156), (588, 35423137), (802, 25971078), (1203, 17314052), (1604, 12985539), (2406, 8657026), (2807, 7420308), (4812, 4328513), (5614, 3710154), (8421, 2473436), (11228, 1855077), (16842, 1236718), (19649, 1060044), (33684, 618359), (39298, 530022), (58947, 353348), (78596, 265011), (88337, 235788), (117894, 176674)]