21497595

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3863}}^1$

素因数の和:3931

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 18564357

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3863, 5565, 11589, 19315, 27041, 57945, 81123, 135205, 204739, 405615, 614217, 1023695, 1433173, 3071085, 4299519, 7165865, 21497595]

約数ペア:

[(1, 21497595), (3, 7165865), (5, 4299519), (7, 3071085), (15, 1433173), (21, 1023695), (35, 614217), (53, 405615), (105, 204739), (159, 135205), (265, 81123), (371, 57945), (795, 27041), (1113, 19315), (1855, 11589), (3863, 5565)]