21877515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 41764320

約数和(自身を除く): 19886805

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 193, 229, 495, 579, 687, 965, 1145, 1737, 2061, 2123, 2519, 2895, 3435, 6369, 7557, 8685, 10305, 10615, 12595, 19107, 22671, 31845, 37785, 44197, 95535, 113355, 132591, 220985, 397773, 486167, 662955, 1458501, 1988865, 2430835, 4375503, 7292505, 21877515]

約数ペア:

[(1, 21877515), (3, 7292505), (5, 4375503), (9, 2430835), (11, 1988865), (15, 1458501), (33, 662955), (45, 486167), (55, 397773), (99, 220985), (165, 132591), (193, 113355), (229, 95535), (495, 44197), (579, 37785), (687, 31845), (965, 22671), (1145, 19107), (1737, 12595), (2061, 10615), (2123, 10305), (2519, 8685), (2895, 7557), (3435, 6369)]