16681875

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:102

約数の個数: 80

約数和(自身を含む): 33589248

約数和(自身を除く): 16907373

約数列:

[1, 3, 5, 7, 15, 21, 25, 31, 35, 41, 75, 93, 105, 123, 125, 155, 175, 205, 217, 287, 375, 465, 525, 615, 625, 651, 775, 861, 875, 1025, 1085, 1271, 1435, 1875, 2325, 2625, 3075, 3255, 3813, 3875, 4305, 4375, 5125, 5425, 6355, 7175, 8897, 11625, 13125, 15375, 16275, 19065, 19375, 21525, 25625, 26691, 27125, 31775, 35875, 44485, 58125, 76875, 81375, 95325, 107625, 133455, 135625, 158875, 179375, 222425, 406875, 476625, 538125, 667275, 794375, 1112125, 2383125, 3336375, 5560625, 16681875]

約数ペア:

[(1, 16681875), (3, 5560625), (5, 3336375), (7, 2383125), (15, 1112125), (21, 794375), (25, 667275), (31, 538125), (35, 476625), (41, 406875), (75, 222425), (93, 179375), (105, 158875), (123, 135625), (125, 133455), (155, 107625), (175, 95325), (205, 81375), (217, 76875), (287, 58125), (375, 44485), (465, 35875), (525, 31775), (615, 27125), (625, 26691), (651, 25625), (775, 21525), (861, 19375), (875, 19065), (1025, 16275), (1085, 15375), (1271, 13125), (1435, 11625), (1875, 8897), (2325, 7175), (2625, 6355), (3075, 5425), (3255, 5125), (3813, 4375), (3875, 4305)]