20961104

素因数分解:

$2^4\times {\mathrm{19}}^3\times {\mathrm{191}}^1$

素因数の和:256

約数の個数: 40

約数和(自身を含む): 43092480

約数和(自身を除く): 22131376

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 191, 304, 361, 382, 722, 764, 1444, 1528, 2888, 3056, 3629, 5776, 6859, 7258, 13718, 14516, 27436, 29032, 54872, 58064, 68951, 109744, 137902, 275804, 551608, 1103216, 1310069, 2620138, 5240276, 10480552, 20961104]

約数ペア:

[(1, 20961104), (2, 10480552), (4, 5240276), (8, 2620138), (16, 1310069), (19, 1103216), (38, 551608), (76, 275804), (152, 137902), (191, 109744), (304, 68951), (361, 58064), (382, 54872), (722, 29032), (764, 27436), (1444, 14516), (1528, 13718), (2888, 7258), (3056, 6859), (3629, 5776)]