21699270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{523}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 56648592

約数和(自身を除く): 34949322

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 461, 523, 922, 1046, 1383, 1569, 2305, 2615, 2766, 3138, 4149, 4610, 4707, 5230, 6915, 7845, 8298, 9414, 13830, 15690, 20745, 23535, 41490, 47070, 241103, 482206, 723309, 1205515, 1446618, 2169927, 2411030, 3616545, 4339854, 7233090, 10849635, 21699270]

約数ペア:

[(1, 21699270), (2, 10849635), (3, 7233090), (5, 4339854), (6, 3616545), (9, 2411030), (10, 2169927), (15, 1446618), (18, 1205515), (30, 723309), (45, 482206), (90, 241103), (461, 47070), (523, 41490), (922, 23535), (1046, 20745), (1383, 15690), (1569, 13830), (2305, 9414), (2615, 8298), (2766, 7845), (3138, 6915), (4149, 5230), (4610, 4707)]