21074280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2879}}^1$

素因数の和:2954

約数の個数: 64

約数和(自身を含む): 64281600

約数和(自身を除く): 43207320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2879, 3660, 5758, 7320, 8637, 11516, 14395, 17274, 23032, 28790, 34548, 43185, 57580, 69096, 86370, 115160, 172740, 175619, 345480, 351238, 526857, 702476, 878095, 1053714, 1404952, 1756190, 2107428, 2634285, 3512380, 4214856, 5268570, 7024760, 10537140, 21074280]

約数ペア:

[(1, 21074280), (2, 10537140), (3, 7024760), (4, 5268570), (5, 4214856), (6, 3512380), (8, 2634285), (10, 2107428), (12, 1756190), (15, 1404952), (20, 1053714), (24, 878095), (30, 702476), (40, 526857), (60, 351238), (61, 345480), (120, 175619), (122, 172740), (183, 115160), (244, 86370), (305, 69096), (366, 57580), (488, 43185), (610, 34548), (732, 28790), (915, 23032), (1220, 17274), (1464, 14395), (1830, 11516), (2440, 8637), (2879, 7320), (3660, 5758)]