20138145

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 33374592

約数和(自身を除く): 13236447

約数列:

[1, 3, 5, 15, 53, 73, 159, 219, 265, 347, 365, 795, 1041, 1095, 1735, 3869, 5205, 11607, 18391, 19345, 25331, 55173, 58035, 75993, 91955, 126655, 275865, 379965, 1342543, 4027629, 6712715, 20138145]

約数ペア:

[(1, 20138145), (3, 6712715), (5, 4027629), (15, 1342543), (53, 379965), (73, 275865), (159, 126655), (219, 91955), (265, 75993), (347, 58035), (365, 55173), (795, 25331), (1041, 19345), (1095, 18391), (1735, 11607), (3869, 5205)]