21193620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50461}}^1$

素因数の和:50480

約数の個数: 48

約数和(自身を含む): 67820928

約数和(自身を除く): 46627308

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, 50461, 100922, 151383, 201844, 252305, 302766, 353227, 504610, 605532, 706454, 756915, 1009220, 1059681, 1412908, 1513830, 1766135, 2119362, 3027660, 3532270, 4238724, 5298405, 7064540, 10596810, 21193620]

約数ペア:

[(1, 21193620), (2, 10596810), (3, 7064540), (4, 5298405), (5, 4238724), (6, 3532270), (7, 3027660), (10, 2119362), (12, 1766135), (14, 1513830), (15, 1412908), (20, 1059681), (21, 1009220), (28, 756915), (30, 706454), (35, 605532), (42, 504610), (60, 353227), (70, 302766), (84, 252305), (105, 201844), (140, 151383), (210, 100922), (420, 50461)]