21719640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3851}}^1$

素因数の和:3912

約数の個数: 64

約数和(自身を含む): 66562560

約数和(自身を除く): 44842920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 94, 120, 141, 188, 235, 282, 376, 470, 564, 705, 940, 1128, 1410, 1880, 2820, 3851, 5640, 7702, 11553, 15404, 19255, 23106, 30808, 38510, 46212, 57765, 77020, 92424, 115530, 154040, 180997, 231060, 361994, 462120, 542991, 723988, 904985, 1085982, 1447976, 1809970, 2171964, 2714955, 3619940, 4343928, 5429910, 7239880, 10859820, 21719640]

約数ペア:

[(1, 21719640), (2, 10859820), (3, 7239880), (4, 5429910), (5, 4343928), (6, 3619940), (8, 2714955), (10, 2171964), (12, 1809970), (15, 1447976), (20, 1085982), (24, 904985), (30, 723988), (40, 542991), (47, 462120), (60, 361994), (94, 231060), (120, 180997), (141, 154040), (188, 115530), (235, 92424), (282, 77020), (376, 57765), (470, 46212), (564, 38510), (705, 30808), (940, 23106), (1128, 19255), (1410, 15404), (1880, 11553), (2820, 7702), (3851, 5640)]