21177960020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1413749}}^1$

素因数の和:1413872

約数の個数: 48

約数和(自身を含む): 51302160000

約数和(自身を除く): 30124199980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1498, 2140, 2996, 3745, 7490, 14980, 1413749, 2827498, 5654996, 7068745, 9896243, 14137490, 19792486, 28274980, 39584972, 49481215, 98962430, 151271143, 197924860, 302542286, 605084572, 756355715, 1058898001, 1512711430, 2117796002, 3025422860, 4235592004, 5294490005, 10588980010, 21177960020]

約数ペア:

[(1, 21177960020), (2, 10588980010), (4, 5294490005), (5, 4235592004), (7, 3025422860), (10, 2117796002), (14, 1512711430), (20, 1058898001), (28, 756355715), (35, 605084572), (70, 302542286), (107, 197924860), (140, 151271143), (214, 98962430), (428, 49481215), (535, 39584972), (749, 28274980), (1070, 19792486), (1498, 14137490), (2140, 9896243), (2996, 7068745), (3745, 5654996), (7490, 2827498), (14980, 1413749)]