21810126

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 47881584

約数和(自身を除く): 26071458

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 137, 157, 169, 274, 314, 338, 411, 471, 507, 822, 942, 1014, 1781, 2041, 3562, 4082, 5343, 6123, 10686, 12246, 21509, 23153, 26533, 43018, 46306, 53066, 64527, 69459, 79599, 129054, 138918, 159198, 279617, 559234, 838851, 1677702, 3635021, 7270042, 10905063, 21810126]

約数ペア:

[(1, 21810126), (2, 10905063), (3, 7270042), (6, 3635021), (13, 1677702), (26, 838851), (39, 559234), (78, 279617), (137, 159198), (157, 138918), (169, 129054), (274, 79599), (314, 69459), (338, 64527), (411, 53066), (471, 46306), (507, 43018), (822, 26533), (942, 23153), (1014, 21509), (1781, 12246), (2041, 10686), (3562, 6123), (4082, 5343)]