19299903

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{421}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 30789120

約数和(自身を除く): 11489217

約数列:

[1, 3, 7, 21, 37, 59, 111, 177, 259, 413, 421, 777, 1239, 1263, 2183, 2947, 6549, 8841, 15281, 15577, 24839, 45843, 46731, 74517, 109039, 173873, 327117, 521619, 919043, 2757129, 6433301, 19299903]

約数ペア:

[(1, 19299903), (3, 6433301), (7, 2757129), (21, 919043), (37, 521619), (59, 327117), (111, 173873), (177, 109039), (259, 74517), (413, 46731), (421, 45843), (777, 24839), (1239, 15577), (1263, 15281), (2183, 8841), (2947, 6549)]