19697608

素因数分解:

$2^3\times 7^2\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 43451100

約数和(自身を除く): 23753492

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 109, 196, 218, 392, 436, 461, 763, 872, 922, 1526, 1844, 3052, 3227, 3688, 5341, 6104, 6454, 10682, 12908, 21364, 22589, 25816, 42728, 45178, 50249, 90356, 100498, 180712, 200996, 351743, 401992, 703486, 1406972, 2462201, 2813944, 4924402, 9848804, 19697608]

約数ペア:

[(1, 19697608), (2, 9848804), (4, 4924402), (7, 2813944), (8, 2462201), (14, 1406972), (28, 703486), (49, 401992), (56, 351743), (98, 200996), (109, 180712), (196, 100498), (218, 90356), (392, 50249), (436, 45178), (461, 42728), (763, 25816), (872, 22589), (922, 21364), (1526, 12908), (1844, 10682), (3052, 6454), (3227, 6104), (3688, 5341)]