19278623

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 25331712

約数和(自身を除く): 6053089

約数列:

[1, 7, 13, 23, 61, 91, 151, 161, 299, 427, 793, 1057, 1403, 1963, 2093, 3473, 5551, 9211, 9821, 13741, 18239, 24311, 45149, 64477, 119743, 127673, 211853, 316043, 838201, 1482971, 2754089, 19278623]

約数ペア:

[(1, 19278623), (7, 2754089), (13, 1482971), (23, 838201), (61, 316043), (91, 211853), (151, 127673), (161, 119743), (299, 64477), (427, 45149), (793, 24311), (1057, 18239), (1403, 13741), (1963, 9821), (2093, 9211), (3473, 5551)]