19965078

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{821}}^1$

素因数の和:1029

約数の個数: 48

約数和(自身を含む): 49754016

約数和(自身を除く): 29788938

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 193, 386, 579, 821, 1158, 1351, 1642, 1737, 2463, 2702, 3474, 4053, 4926, 5747, 7389, 8106, 11494, 12159, 14778, 17241, 24318, 34482, 51723, 103446, 158453, 316906, 475359, 950718, 1109171, 1426077, 2218342, 2852154, 3327513, 6655026, 9982539, 19965078]

約数ペア:

[(1, 19965078), (2, 9982539), (3, 6655026), (6, 3327513), (7, 2852154), (9, 2218342), (14, 1426077), (18, 1109171), (21, 950718), (42, 475359), (63, 316906), (126, 158453), (193, 103446), (386, 51723), (579, 34482), (821, 24318), (1158, 17241), (1351, 14778), (1642, 12159), (1737, 11494), (2463, 8106), (2702, 7389), (3474, 5747), (4053, 4926)]