28716903

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 44858880

約数和(自身を除く): 16141977

約数列:

[1, 3, 9, 23, 27, 69, 131, 207, 353, 393, 621, 1059, 1179, 3013, 3177, 3537, 8119, 9039, 9531, 24357, 27117, 46243, 73071, 81351, 138729, 219213, 416187, 1063589, 1248561, 3190767, 9572301, 28716903]

約数ペア:

[(1, 28716903), (3, 9572301), (9, 3190767), (23, 1248561), (27, 1063589), (69, 416187), (131, 219213), (207, 138729), (353, 81351), (393, 73071), (621, 46243), (1059, 27117), (1179, 24357), (3013, 9531), (3177, 9039), (3537, 8119)]