21331950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{2003}}^1$

素因数の和:2089

約数の個数: 48

約数和(自身を含む): 53675136

約数和(自身を除く): 32343186

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 71, 75, 142, 150, 213, 355, 426, 710, 1065, 1775, 2003, 2130, 3550, 4006, 5325, 6009, 10015, 10650, 12018, 20030, 30045, 50075, 60090, 100150, 142213, 150225, 284426, 300450, 426639, 711065, 853278, 1422130, 2133195, 3555325, 4266390, 7110650, 10665975, 21331950]

約数ペア:

[(1, 21331950), (2, 10665975), (3, 7110650), (5, 4266390), (6, 3555325), (10, 2133195), (15, 1422130), (25, 853278), (30, 711065), (50, 426639), (71, 300450), (75, 284426), (142, 150225), (150, 142213), (213, 100150), (355, 60090), (426, 50075), (710, 30045), (1065, 20030), (1775, 12018), (2003, 10650), (2130, 10015), (3550, 6009), (4006, 5325)]