21795060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{51893}}^1$

素因数の和:51912

約数の個数: 48

約数和(自身を含む): 69745536

約数和(自身を除く): 47950476

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 51893, 103786, 155679, 207572, 259465, 311358, 363251, 518930, 622716, 726502, 778395, 1037860, 1089753, 1453004, 1556790, 1816255, 2179506, 3113580, 3632510, 4359012, 5448765, 7265020, 10897530, 21795060]

約数ペア:

[(1, 21795060), (2, 10897530), (3, 7265020), (4, 5448765), (5, 4359012), (6, 3632510), (7, 3113580), (10, 2179506), (12, 1816255), (14, 1556790), (15, 1453004), (20, 1089753), (21, 1037860), (28, 778395), (30, 726502), (35, 622716), (42, 518930), (60, 363251), (70, 311358), (84, 259465), (105, 207572), (140, 155679), (210, 103786), (420, 51893)]