21918660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{911}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 61592832

約数和(自身を除く): 39674172

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 802, 911, 1203, 1604, 1822, 2005, 2406, 2733, 3644, 4010, 4555, 4812, 5466, 6015, 8020, 9110, 10932, 12030, 13665, 18220, 24060, 27330, 54660, 365311, 730622, 1095933, 1461244, 1826555, 2191866, 3653110, 4383732, 5479665, 7306220, 10959330, 21918660]

約数ペア:

[(1, 21918660), (2, 10959330), (3, 7306220), (4, 5479665), (5, 4383732), (6, 3653110), (10, 2191866), (12, 1826555), (15, 1461244), (20, 1095933), (30, 730622), (60, 365311), (401, 54660), (802, 27330), (911, 24060), (1203, 18220), (1604, 13665), (1822, 12030), (2005, 10932), (2406, 9110), (2733, 8020), (3644, 6015), (4010, 5466), (4555, 4812)]