21696757978

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{70537}}^1$

素因数の和:70846

約数の個数: 32

約数和(自身を含む): 37704536064

約数和(自身を除く): 16007778086

約数列:

[1, 2, 7, 14, 127, 173, 254, 346, 889, 1211, 1778, 2422, 21971, 43942, 70537, 141074, 153797, 307594, 493759, 987518, 8958199, 12202901, 17916398, 24405802, 62707393, 85420307, 125414786, 170840614, 1549768427, 3099536854, 10848378989, 21696757978]

約数ペア:

[(1, 21696757978), (2, 10848378989), (7, 3099536854), (14, 1549768427), (127, 170840614), (173, 125414786), (254, 85420307), (346, 62707393), (889, 24405802), (1211, 17916398), (1778, 12202901), (2422, 8958199), (21971, 987518), (43942, 493759), (70537, 307594), (141074, 153797)]