21026340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{587}}^1$

素因数の和:801

約数の個数: 72

約数和(自身を含む): 64209600

約数和(自身を除く): 43183260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 587, 597, 796, 995, 1174, 1194, 1761, 1791, 1990, 2348, 2388, 2935, 2985, 3522, 3582, 3980, 5283, 5870, 5970, 7044, 7164, 8805, 8955, 10566, 11740, 11940, 17610, 17910, 21132, 26415, 35220, 35820, 52830, 105660, 116813, 233626, 350439, 467252, 584065, 700878, 1051317, 1168130, 1401756, 1752195, 2102634, 2336260, 3504390, 4205268, 5256585, 7008780, 10513170, 21026340]

約数ペア:

[(1, 21026340), (2, 10513170), (3, 7008780), (4, 5256585), (5, 4205268), (6, 3504390), (9, 2336260), (10, 2102634), (12, 1752195), (15, 1401756), (18, 1168130), (20, 1051317), (30, 700878), (36, 584065), (45, 467252), (60, 350439), (90, 233626), (180, 116813), (199, 105660), (398, 52830), (587, 35820), (597, 35220), (796, 26415), (995, 21132), (1174, 17910), (1194, 17610), (1761, 11940), (1791, 11740), (1990, 10566), (2348, 8955), (2388, 8805), (2935, 7164), (2985, 7044), (3522, 5970), (3582, 5870), (3980, 5283)]