21001862080

素因数分解:

$2^6\times 5^1\times {\mathrm{353}}^1\times {\mathrm{185923}}^1$

素因数の和:186293

約数の個数: 56

約数和(自身を含む): 50152627152

約数和(自身を除く): 29150765072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 353, 706, 1412, 1765, 2824, 3530, 5648, 7060, 11296, 14120, 22592, 28240, 56480, 112960, 185923, 371846, 743692, 929615, 1487384, 1859230, 2974768, 3718460, 5949536, 7436920, 11899072, 14873840, 29747680, 59495360, 65630819, 131261638, 262523276, 328154095, 525046552, 656308190, 1050093104, 1312616380, 2100186208, 2625232760, 4200372416, 5250465520, 10500931040, 21001862080]

約数ペア:

[(1, 21001862080), (2, 10500931040), (4, 5250465520), (5, 4200372416), (8, 2625232760), (10, 2100186208), (16, 1312616380), (20, 1050093104), (32, 656308190), (40, 525046552), (64, 328154095), (80, 262523276), (160, 131261638), (320, 65630819), (353, 59495360), (706, 29747680), (1412, 14873840), (1765, 11899072), (2824, 7436920), (3530, 5949536), (5648, 3718460), (7060, 2974768), (11296, 1859230), (14120, 1487384), (22592, 929615), (28240, 743692), (56480, 371846), (112960, 185923)]