215172015

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{1571}}^1$

素因数の和:1999

約数の個数: 32

約数和(自身を含む): 360377856

約数和(自身を除く): 145205841

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 397, 1191, 1571, 1985, 4713, 5955, 7855, 9131, 23565, 27393, 36133, 45655, 108399, 136965, 180665, 541995, 623687, 1871061, 3118435, 9355305, 14344801, 43034403, 71724005, 215172015]

約数ペア:

[(1, 215172015), (3, 71724005), (5, 43034403), (15, 14344801), (23, 9355305), (69, 3118435), (115, 1871061), (345, 623687), (397, 541995), (1191, 180665), (1571, 136965), (1985, 108399), (4713, 45655), (5955, 36133), (7855, 27393), (9131, 23565)]