21551149009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1\times {\mathrm{997}}^1$

素因数の和:1429

約数の個数: 32

約数和(自身を含む): 23947449120

約数和(自身を除く): 2396300111

約数列:

[1, 13, 53, 137, 229, 689, 997, 1781, 2977, 7261, 12137, 12961, 31373, 52841, 94393, 136589, 157781, 228313, 407849, 686933, 1662769, 1775657, 2968069, 7239217, 12100589, 21615997, 31278881, 94109821, 157307657, 406625453, 1657780693, 21551149009]

約数ペア:

[(1, 21551149009), (13, 1657780693), (53, 406625453), (137, 157307657), (229, 94109821), (689, 31278881), (997, 21615997), (1781, 12100589), (2977, 7239217), (7261, 2968069), (12137, 1775657), (12961, 1662769), (31373, 686933), (52841, 407849), (94393, 228313), (136589, 157781)]