21674380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11909}}^1$

素因数の和:11938

約数の個数: 48

約数和(自身を含む): 56024640

約数和(自身を除く): 34350260

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11909, 23818, 47636, 59545, 83363, 119090, 154817, 166726, 238180, 309634, 333452, 416815, 619268, 774085, 833630, 1083719, 1548170, 1667260, 2167438, 3096340, 4334876, 5418595, 10837190, 21674380]

約数ペア:

[(1, 21674380), (2, 10837190), (4, 5418595), (5, 4334876), (7, 3096340), (10, 2167438), (13, 1667260), (14, 1548170), (20, 1083719), (26, 833630), (28, 774085), (35, 619268), (52, 416815), (65, 333452), (70, 309634), (91, 238180), (130, 166726), (140, 154817), (182, 119090), (260, 83363), (364, 59545), (455, 47636), (910, 23818), (1820, 11909)]