19928097

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 36391680

約数和(自身を除く): 16463583

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 391, 483, 809, 1071, 1173, 1449, 2427, 2737, 3519, 5663, 7281, 8211, 13753, 16989, 18607, 24633, 41259, 50967, 55821, 96271, 123777, 130249, 167463, 288813, 316319, 390747, 866439, 948957, 1172241, 2214233, 2846871, 6642699, 19928097]

約数ペア:

[(1, 19928097), (3, 6642699), (7, 2846871), (9, 2214233), (17, 1172241), (21, 948957), (23, 866439), (51, 390747), (63, 316319), (69, 288813), (119, 167463), (153, 130249), (161, 123777), (207, 96271), (357, 55821), (391, 50967), (483, 41259), (809, 24633), (1071, 18607), (1173, 16989), (1449, 13753), (2427, 8211), (2737, 7281), (3519, 5663)]