21407412

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3347}}^1$

素因数の和:3408

約数の個数: 48

約数和(自身を含む): 55121472

約数和(自身を除く): 33714060

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3198, 3347, 6396, 6694, 10041, 13388, 20082, 40164, 43511, 87022, 130533, 137227, 174044, 261066, 274454, 411681, 522132, 548908, 823362, 1646724, 1783951, 3567902, 5351853, 7135804, 10703706, 21407412]

約数ペア:

[(1, 21407412), (2, 10703706), (3, 7135804), (4, 5351853), (6, 3567902), (12, 1783951), (13, 1646724), (26, 823362), (39, 548908), (41, 522132), (52, 411681), (78, 274454), (82, 261066), (123, 174044), (156, 137227), (164, 130533), (246, 87022), (492, 43511), (533, 40164), (1066, 20082), (1599, 13388), (2132, 10041), (3198, 6694), (3347, 6396)]