18921315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5813}}^1$

素因数の和:5859

約数の個数: 32

約数和(自身を含む): 35721216

約数和(自身を除く): 16799901

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 5813, 17439, 29065, 40691, 87195, 122073, 180203, 203455, 540609, 610365, 901015, 1261421, 2703045, 3784263, 6307105, 18921315]

約数ペア:

[(1, 18921315), (3, 6307105), (5, 3784263), (7, 2703045), (15, 1261421), (21, 901015), (31, 610365), (35, 540609), (93, 203455), (105, 180203), (155, 122073), (217, 87195), (465, 40691), (651, 29065), (1085, 17439), (3255, 5813)]