21756790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2383}}^1$

素因数の和:2484

約数の個数: 32

約数和(自身を含む): 43255296

約数和(自身を除く): 21498506

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 166, 415, 830, 913, 1826, 2383, 4565, 4766, 9130, 11915, 23830, 26213, 52426, 131065, 197789, 262130, 395578, 988945, 1977890, 2175679, 4351358, 10878395, 21756790]

約数ペア:

[(1, 21756790), (2, 10878395), (5, 4351358), (10, 2175679), (11, 1977890), (22, 988945), (55, 395578), (83, 262130), (110, 197789), (166, 131065), (415, 52426), (830, 26213), (913, 23830), (1826, 11915), (2383, 9130), (4565, 4766)]