19699407

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 15943473

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 67, 91, 117, 201, 273, 359, 469, 603, 819, 871, 1077, 1407, 2513, 2613, 3231, 4221, 4667, 6097, 7539, 7839, 14001, 18291, 22617, 24053, 32669, 42003, 54873, 72159, 98007, 168371, 216477, 294021, 312689, 505113, 938067, 1515339, 2188823, 2814201, 6566469, 19699407]

約数ペア:

[(1, 19699407), (3, 6566469), (7, 2814201), (9, 2188823), (13, 1515339), (21, 938067), (39, 505113), (63, 312689), (67, 294021), (91, 216477), (117, 168371), (201, 98007), (273, 72159), (359, 54873), (469, 42003), (603, 32669), (819, 24053), (871, 22617), (1077, 18291), (1407, 14001), (2513, 7839), (2613, 7539), (3231, 6097), (4221, 4667)]