19520445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 38154240

約数和(自身を除く): 18633795

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 59, 69, 105, 115, 137, 161, 177, 295, 345, 411, 413, 483, 685, 805, 885, 959, 1239, 1357, 2055, 2065, 2415, 2877, 3151, 4071, 4795, 6195, 6785, 8083, 9453, 9499, 14385, 15755, 20355, 22057, 24249, 28497, 40415, 47265, 47495, 56581, 66171, 110285, 121245, 142485, 169743, 185909, 282905, 330855, 557727, 848715, 929545, 1301363, 2788635, 3904089, 6506815, 19520445]

約数ペア:

[(1, 19520445), (3, 6506815), (5, 3904089), (7, 2788635), (15, 1301363), (21, 929545), (23, 848715), (35, 557727), (59, 330855), (69, 282905), (105, 185909), (115, 169743), (137, 142485), (161, 121245), (177, 110285), (295, 66171), (345, 56581), (411, 47495), (413, 47265), (483, 40415), (685, 28497), (805, 24249), (885, 22057), (959, 20355), (1239, 15755), (1357, 14385), (2055, 9499), (2065, 9453), (2415, 8083), (2877, 6785), (3151, 6195), (4071, 4795)]