21990959985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{75793}}^1$

素因数の和:75882

約数の個数: 48

約数和(自身を含む): 38025546624

約数和(自身を除く): 16034586639

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 841, 2001, 2523, 3335, 4205, 10005, 12615, 19343, 58029, 75793, 96715, 227379, 290145, 378965, 1136895, 1743239, 2197997, 5229717, 6593991, 8716195, 10989985, 26148585, 32969955, 50553931, 63741913, 151661793, 191225739, 252769655, 318709565, 758308965, 956128695, 1466063999, 4398191997, 7330319995, 21990959985]

約数ペア:

[(1, 21990959985), (3, 7330319995), (5, 4398191997), (15, 1466063999), (23, 956128695), (29, 758308965), (69, 318709565), (87, 252769655), (115, 191225739), (145, 151661793), (345, 63741913), (435, 50553931), (667, 32969955), (841, 26148585), (2001, 10989985), (2523, 8716195), (3335, 6593991), (4205, 5229717), (10005, 2197997), (12615, 1743239), (19343, 1136895), (58029, 378965), (75793, 290145), (96715, 227379)]