19923332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 41705664

約数和(自身を除く): 21782332

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 61, 122, 143, 244, 286, 571, 572, 671, 793, 1142, 1342, 1586, 2284, 2684, 3172, 6281, 7423, 8723, 12562, 14846, 17446, 25124, 29692, 34831, 34892, 69662, 81653, 139324, 163306, 326612, 383141, 452803, 766282, 905606, 1532564, 1811212, 4980833, 9961666, 19923332]

約数ペア:

[(1, 19923332), (2, 9961666), (4, 4980833), (11, 1811212), (13, 1532564), (22, 905606), (26, 766282), (44, 452803), (52, 383141), (61, 326612), (122, 163306), (143, 139324), (244, 81653), (286, 69662), (571, 34892), (572, 34831), (671, 29692), (793, 25124), (1142, 17446), (1342, 14846), (1586, 12562), (2284, 8723), (2684, 7423), (3172, 6281)]