21365550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{601}}^1$

素因数の和:698

約数の個数: 72

約数和(自身を含む): 58225440

約数和(自身を除く): 36859890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 79, 90, 150, 158, 225, 237, 395, 450, 474, 601, 711, 790, 1185, 1202, 1422, 1803, 1975, 2370, 3005, 3555, 3606, 3950, 5409, 5925, 6010, 7110, 9015, 10818, 11850, 15025, 17775, 18030, 27045, 30050, 35550, 45075, 47479, 54090, 90150, 94958, 135225, 142437, 237395, 270450, 284874, 427311, 474790, 712185, 854622, 1186975, 1424370, 2136555, 2373950, 3560925, 4273110, 7121850, 10682775, 21365550]

約数ペア:

[(1, 21365550), (2, 10682775), (3, 7121850), (5, 4273110), (6, 3560925), (9, 2373950), (10, 2136555), (15, 1424370), (18, 1186975), (25, 854622), (30, 712185), (45, 474790), (50, 427311), (75, 284874), (79, 270450), (90, 237395), (150, 142437), (158, 135225), (225, 94958), (237, 90150), (395, 54090), (450, 47479), (474, 45075), (601, 35550), (711, 30050), (790, 27045), (1185, 18030), (1202, 17775), (1422, 15025), (1803, 11850), (1975, 10818), (2370, 9015), (3005, 7110), (3555, 6010), (3606, 5925), (3950, 5409)]