17921820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 58254336

約数和(自身を除く): 40332516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 601, 710, 852, 994, 1065, 1202, 1420, 1491, 1803, 1988, 2130, 2404, 2485, 2982, 3005, 3606, 4207, 4260, 4970, 5964, 6010, 7212, 7455, 8414, 9015, 9940, 12020, 12621, 14910, 16828, 18030, 21035, 25242, 29820, 36060, 42070, 42671, 50484, 63105, 84140, 85342, 126210, 128013, 170684, 213355, 252420, 256026, 298697, 426710, 512052, 597394, 640065, 853420, 896091, 1194788, 1280130, 1493485, 1792182, 2560260, 2986970, 3584364, 4480455, 5973940, 8960910, 17921820]

約数ペア:

[(1, 17921820), (2, 8960910), (3, 5973940), (4, 4480455), (5, 3584364), (6, 2986970), (7, 2560260), (10, 1792182), (12, 1493485), (14, 1280130), (15, 1194788), (20, 896091), (21, 853420), (28, 640065), (30, 597394), (35, 512052), (42, 426710), (60, 298697), (70, 256026), (71, 252420), (84, 213355), (105, 170684), (140, 128013), (142, 126210), (210, 85342), (213, 84140), (284, 63105), (355, 50484), (420, 42671), (426, 42070), (497, 36060), (601, 29820), (710, 25242), (852, 21035), (994, 18030), (1065, 16828), (1202, 14910), (1420, 12621), (1491, 12020), (1803, 9940), (1988, 9015), (2130, 8414), (2404, 7455), (2485, 7212), (2982, 6010), (3005, 5964), (3606, 4970), (4207, 4260)]