19519604

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 20106892

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 142, 221, 284, 311, 442, 622, 884, 923, 1207, 1244, 1846, 2414, 3692, 4043, 4828, 5287, 8086, 10574, 15691, 16172, 21148, 22081, 31382, 44162, 62764, 68731, 88324, 137462, 274924, 287053, 375377, 574106, 750754, 1148212, 1501508, 4879901, 9759802, 19519604]

約数ペア:

[(1, 19519604), (2, 9759802), (4, 4879901), (13, 1501508), (17, 1148212), (26, 750754), (34, 574106), (52, 375377), (68, 287053), (71, 274924), (142, 137462), (221, 88324), (284, 68731), (311, 62764), (442, 44162), (622, 31382), (884, 22081), (923, 21148), (1207, 16172), (1244, 15691), (1846, 10574), (2414, 8086), (3692, 5287), (4043, 4828)]