19007567995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{400033}}^1$

素因数の和:400111

約数の個数: 32

約数和(自身を含む): 26613461952

約数和(自身を除く): 7605893957

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 2795, 3655, 9503, 47515, 400033, 2000165, 5200429, 6800561, 17201419, 26002145, 34002805, 86007095, 88407293, 223618447, 292424123, 442036465, 1118092235, 1462120615, 3801513599, 19007567995]

約数ペア:

[(1, 19007567995), (5, 3801513599), (13, 1462120615), (17, 1118092235), (43, 442036465), (65, 292424123), (85, 223618447), (215, 88407293), (221, 86007095), (559, 34002805), (731, 26002145), (1105, 17201419), (2795, 6800561), (3655, 5200429), (9503, 2000165), (47515, 400033)]