1861965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 3863808

約数和(自身を除く): 2001843

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 105, 115, 161, 207, 257, 315, 345, 483, 771, 805, 1035, 1285, 1449, 1799, 2313, 2415, 3855, 5397, 5911, 7245, 8995, 11565, 16191, 17733, 26985, 29555, 41377, 53199, 80955, 88665, 124131, 206885, 265995, 372393, 620655, 1861965]

約数ペア:

[(1, 1861965), (3, 620655), (5, 372393), (7, 265995), (9, 206885), (15, 124131), (21, 88665), (23, 80955), (35, 53199), (45, 41377), (63, 29555), (69, 26985), (105, 17733), (115, 16191), (161, 11565), (207, 8995), (257, 7245), (315, 5911), (345, 5397), (483, 3855), (771, 2415), (805, 2313), (1035, 1799), (1285, 1449)]