21954420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5303}}^1$

素因数の和:5341

約数の個数: 72

約数和(自身を含む): 69503616

約数和(自身を除く): 47549196

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5303, 10606, 15909, 21212, 26515, 31818, 47727, 53030, 63636, 79545, 95454, 106060, 121969, 159090, 190908, 238635, 243938, 318180, 365907, 477270, 487876, 609845, 731814, 954540, 1097721, 1219690, 1463628, 1829535, 2195442, 2439380, 3659070, 4390884, 5488605, 7318140, 10977210, 21954420]

約数ペア:

[(1, 21954420), (2, 10977210), (3, 7318140), (4, 5488605), (5, 4390884), (6, 3659070), (9, 2439380), (10, 2195442), (12, 1829535), (15, 1463628), (18, 1219690), (20, 1097721), (23, 954540), (30, 731814), (36, 609845), (45, 487876), (46, 477270), (60, 365907), (69, 318180), (90, 243938), (92, 238635), (115, 190908), (138, 159090), (180, 121969), (207, 106060), (230, 95454), (276, 79545), (345, 63636), (414, 53030), (460, 47727), (690, 31818), (828, 26515), (1035, 21212), (1380, 15909), (2070, 10606), (4140, 5303)]