20649538

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4933}}^1$

素因数の和:4978

約数の個数: 32

約数和(自身を含む): 39787776

約数和(自身を除く): 19138238

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 182, 299, 322, 598, 2093, 4186, 4933, 9866, 34531, 64129, 69062, 113459, 128258, 226918, 448903, 794213, 897806, 1474967, 1588426, 2949934, 10324769, 20649538]

約数ペア:

[(1, 20649538), (2, 10324769), (7, 2949934), (13, 1588426), (14, 1474967), (23, 897806), (26, 794213), (46, 448903), (91, 226918), (161, 128258), (182, 113459), (299, 69062), (322, 64129), (598, 34531), (2093, 9866), (4186, 4933)]