19991692

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 22908788

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 644, 839, 851, 1036, 1678, 1702, 3356, 3404, 5873, 5957, 11746, 11914, 19297, 23492, 23828, 31043, 38594, 62086, 77188, 124172, 135079, 217301, 270158, 434602, 540316, 713989, 869204, 1427978, 2855956, 4997923, 9995846, 19991692]

約数ペア:

[(1, 19991692), (2, 9995846), (4, 4997923), (7, 2855956), (14, 1427978), (23, 869204), (28, 713989), (37, 540316), (46, 434602), (74, 270158), (92, 217301), (148, 135079), (161, 124172), (259, 77188), (322, 62086), (518, 38594), (644, 31043), (839, 23828), (851, 23492), (1036, 19297), (1678, 11914), (1702, 11746), (3356, 5957), (3404, 5873)]