21259602

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12979}}^1$

素因数の和:13007

約数の個数: 48

約数和(自身を含む): 56696640

約数和(自身を除く): 35437038

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12979, 25958, 38937, 77874, 90853, 116811, 168727, 181706, 233622, 272559, 337454, 506181, 545118, 817677, 1012362, 1181089, 1518543, 1635354, 2362178, 3037086, 3543267, 7086534, 10629801, 21259602]

約数ペア:

[(1, 21259602), (2, 10629801), (3, 7086534), (6, 3543267), (7, 3037086), (9, 2362178), (13, 1635354), (14, 1518543), (18, 1181089), (21, 1012362), (26, 817677), (39, 545118), (42, 506181), (63, 337454), (78, 272559), (91, 233622), (117, 181706), (126, 168727), (182, 116811), (234, 90853), (273, 77874), (546, 38937), (819, 25958), (1638, 12979)]