19969313

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 27578880

約数和(自身を除く): 7609567

約数列:

[1, 7, 13, 23, 29, 47, 49, 91, 161, 203, 299, 329, 377, 611, 637, 667, 1081, 1127, 1363, 1421, 2093, 2303, 2639, 4277, 4669, 7567, 8671, 9541, 14053, 14651, 17719, 18473, 29939, 31349, 32683, 52969, 60697, 66787, 98371, 124033, 219443, 407537, 424879, 688597, 868231, 1536101, 2852759, 19969313]

約数ペア:

[(1, 19969313), (7, 2852759), (13, 1536101), (23, 868231), (29, 688597), (47, 424879), (49, 407537), (91, 219443), (161, 124033), (203, 98371), (299, 66787), (329, 60697), (377, 52969), (611, 32683), (637, 31349), (667, 29939), (1081, 18473), (1127, 17719), (1363, 14651), (1421, 14053), (2093, 9541), (2303, 8671), (2639, 7567), (4277, 4669)]