21431826

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1367}}^1$

素因数の和:1455

約数の個数: 48

約数和(自身を含む): 50791104

約数和(自身を除く): 29359278

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 67, 78, 117, 134, 201, 234, 402, 603, 871, 1206, 1367, 1742, 2613, 2734, 4101, 5226, 7839, 8202, 12303, 15678, 17771, 24606, 35542, 53313, 91589, 106626, 159939, 183178, 274767, 319878, 549534, 824301, 1190657, 1648602, 2381314, 3571971, 7143942, 10715913, 21431826]

約数ペア:

[(1, 21431826), (2, 10715913), (3, 7143942), (6, 3571971), (9, 2381314), (13, 1648602), (18, 1190657), (26, 824301), (39, 549534), (67, 319878), (78, 274767), (117, 183178), (134, 159939), (201, 106626), (234, 91589), (402, 53313), (603, 35542), (871, 24606), (1206, 17771), (1367, 15678), (1742, 12303), (2613, 8202), (2734, 7839), (4101, 5226)]