81221028

素因数分解:

$2^2\times 3^1\times 7^4\times {\mathrm{2819}}^1$

素因数の和:2854

約数の個数: 60

約数和(自身を含む): 221166960

約数和(自身を除く): 139945932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 2401, 2819, 4116, 4802, 5638, 7203, 8457, 9604, 11276, 14406, 16914, 19733, 28812, 33828, 39466, 59199, 78932, 118398, 138131, 236796, 276262, 414393, 552524, 828786, 966917, 1657572, 1933834, 2900751, 3867668, 5801502, 6768419, 11603004, 13536838, 20305257, 27073676, 40610514, 81221028]

約数ペア:

[(1, 81221028), (2, 40610514), (3, 27073676), (4, 20305257), (6, 13536838), (7, 11603004), (12, 6768419), (14, 5801502), (21, 3867668), (28, 2900751), (42, 1933834), (49, 1657572), (84, 966917), (98, 828786), (147, 552524), (196, 414393), (294, 276262), (343, 236796), (588, 138131), (686, 118398), (1029, 78932), (1372, 59199), (2058, 39466), (2401, 33828), (2819, 28812), (4116, 19733), (4802, 16914), (5638, 14406), (7203, 11276), (8457, 9604)]