19738425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 39184992

約数和(自身を除く): 19446567

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 49, 75, 105, 123, 131, 147, 175, 205, 245, 287, 393, 525, 615, 655, 735, 861, 917, 1025, 1225, 1435, 1965, 2009, 2751, 3075, 3275, 3675, 4305, 4585, 5371, 6027, 6419, 7175, 9825, 10045, 13755, 16113, 19257, 21525, 22925, 26855, 30135, 32095, 37597, 50225, 68775, 80565, 96285, 112791, 134275, 150675, 160475, 187985, 263179, 402825, 481425, 563955, 789537, 939925, 1315895, 2819775, 3947685, 6579475, 19738425]

約数ペア:

[(1, 19738425), (3, 6579475), (5, 3947685), (7, 2819775), (15, 1315895), (21, 939925), (25, 789537), (35, 563955), (41, 481425), (49, 402825), (75, 263179), (105, 187985), (123, 160475), (131, 150675), (147, 134275), (175, 112791), (205, 96285), (245, 80565), (287, 68775), (393, 50225), (525, 37597), (615, 32095), (655, 30135), (735, 26855), (861, 22925), (917, 21525), (1025, 19257), (1225, 16113), (1435, 13755), (1965, 10045), (2009, 9825), (2751, 7175), (3075, 6419), (3275, 6027), (3675, 5371), (4305, 4585)]