18221940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9203}}^1$

素因数の和:9229

約数の個数: 72

約数和(自身を含む): 60304608

約数和(自身を除く): 42082668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9203, 18406, 27609, 36812, 46015, 55218, 82827, 92030, 101233, 110436, 138045, 165654, 184060, 202466, 276090, 303699, 331308, 404932, 414135, 506165, 552180, 607398, 828270, 911097, 1012330, 1214796, 1518495, 1656540, 1822194, 2024660, 3036990, 3644388, 4555485, 6073980, 9110970, 18221940]

約数ペア:

[(1, 18221940), (2, 9110970), (3, 6073980), (4, 4555485), (5, 3644388), (6, 3036990), (9, 2024660), (10, 1822194), (11, 1656540), (12, 1518495), (15, 1214796), (18, 1012330), (20, 911097), (22, 828270), (30, 607398), (33, 552180), (36, 506165), (44, 414135), (45, 404932), (55, 331308), (60, 303699), (66, 276090), (90, 202466), (99, 184060), (110, 165654), (132, 138045), (165, 110436), (180, 101233), (198, 92030), (220, 82827), (330, 55218), (396, 46015), (495, 36812), (660, 27609), (990, 18406), (1980, 9203)]