21977515

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:931

約数の個数: 32

約数和(自身を含む): 32693760

約数和(自身を除く): 10716245

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 731, 859, 1505, 3655, 4295, 5117, 6013, 14603, 25585, 30065, 36937, 73015, 102221, 184685, 258559, 511105, 627929, 1292795, 3139645, 4395503, 21977515]

約数ペア:

[(1, 21977515), (5, 4395503), (7, 3139645), (17, 1292795), (35, 627929), (43, 511105), (85, 258559), (119, 184685), (215, 102221), (301, 73015), (595, 36937), (731, 30065), (859, 25585), (1505, 14603), (3655, 6013), (4295, 5117)]