19977030

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8221}}^1$

素因数の和:8243

約数の個数: 48

約数和(自身を含む): 53870544

約数和(自身を除く): 33893514

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8221, 16442, 24663, 41105, 49326, 73989, 82210, 123315, 147978, 221967, 246630, 369945, 443934, 665901, 739890, 1109835, 1331802, 1997703, 2219670, 3329505, 3995406, 6659010, 9988515, 19977030]

約数ペア:

[(1, 19977030), (2, 9988515), (3, 6659010), (5, 3995406), (6, 3329505), (9, 2219670), (10, 1997703), (15, 1331802), (18, 1109835), (27, 739890), (30, 665901), (45, 443934), (54, 369945), (81, 246630), (90, 221967), (135, 147978), (162, 123315), (243, 82210), (270, 73989), (405, 49326), (486, 41105), (810, 24663), (1215, 16442), (2430, 8221)]