19571223

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 11394537

約数列:

[1, 3, 7, 21, 47, 79, 141, 237, 251, 329, 553, 753, 987, 1659, 1757, 3713, 5271, 11139, 11797, 19829, 25991, 35391, 59487, 77973, 82579, 138803, 247737, 416409, 931963, 2795889, 6523741, 19571223]

約数ペア:

[(1, 19571223), (3, 6523741), (7, 2795889), (21, 931963), (47, 416409), (79, 247737), (141, 138803), (237, 82579), (251, 77973), (329, 59487), (553, 35391), (753, 25991), (987, 19829), (1659, 11797), (1757, 11139), (3713, 5271)]