16721115

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2851}}^1$

素因数の和:2899

約数の個数: 32

約数和(自身を含む): 29569536

約数和(自身を除く): 12848421

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 2851, 5865, 8553, 14255, 42765, 48467, 65573, 145401, 196719, 242335, 327865, 727005, 983595, 1114741, 3344223, 5573705, 16721115]

約数ペア:

[(1, 16721115), (3, 5573705), (5, 3344223), (15, 1114741), (17, 983595), (23, 727005), (51, 327865), (69, 242335), (85, 196719), (115, 145401), (255, 65573), (345, 48467), (391, 42765), (1173, 14255), (1955, 8553), (2851, 5865)]