19919016

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{1637}}^1$

素因数の和:1675

約数の個数: 72

約数和(自身を含む): 58452030

約数和(自身を除く): 38533014

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 169, 234, 312, 338, 468, 507, 676, 936, 1014, 1352, 1521, 1637, 2028, 3042, 3274, 4056, 4911, 6084, 6548, 9822, 12168, 13096, 14733, 19644, 21281, 29466, 39288, 42562, 58932, 63843, 85124, 117864, 127686, 170248, 191529, 255372, 276653, 383058, 510744, 553306, 766116, 829959, 1106612, 1532232, 1659918, 2213224, 2489877, 3319836, 4979754, 6639672, 9959508, 19919016]

約数ペア:

[(1, 19919016), (2, 9959508), (3, 6639672), (4, 4979754), (6, 3319836), (8, 2489877), (9, 2213224), (12, 1659918), (13, 1532232), (18, 1106612), (24, 829959), (26, 766116), (36, 553306), (39, 510744), (52, 383058), (72, 276653), (78, 255372), (104, 191529), (117, 170248), (156, 127686), (169, 117864), (234, 85124), (312, 63843), (338, 58932), (468, 42562), (507, 39288), (676, 29466), (936, 21281), (1014, 19644), (1352, 14733), (1521, 13096), (1637, 12168), (2028, 9822), (3042, 6548), (3274, 6084), (4056, 4911)]