128844919

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 159667200

約数和(自身を除く): 30822281

約数列:

[1, 7, 23, 41, 131, 149, 161, 287, 917, 943, 1043, 3013, 3427, 5371, 6109, 6601, 19519, 21091, 23989, 37597, 42763, 123533, 136633, 140507, 448937, 800279, 864731, 983549, 3142559, 5601953, 18406417, 128844919]

約数ペア:

[(1, 128844919), (7, 18406417), (23, 5601953), (41, 3142559), (131, 983549), (149, 864731), (161, 800279), (287, 448937), (917, 140507), (943, 136633), (1043, 123533), (3013, 42763), (3427, 37597), (5371, 23989), (6109, 21091), (6601, 19519)]