16402988

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 34320384

約数和(自身を除く): 17917396

約数列:

[1, 2, 4, 7, 14, 28, 37, 71, 74, 142, 148, 223, 259, 284, 446, 497, 518, 892, 994, 1036, 1561, 1988, 2627, 3122, 5254, 6244, 8251, 10508, 15833, 16502, 18389, 31666, 33004, 36778, 57757, 63332, 73556, 110831, 115514, 221662, 231028, 443324, 585821, 1171642, 2343284, 4100747, 8201494, 16402988]

約数ペア:

[(1, 16402988), (2, 8201494), (4, 4100747), (7, 2343284), (14, 1171642), (28, 585821), (37, 443324), (71, 231028), (74, 221662), (142, 115514), (148, 110831), (223, 73556), (259, 63332), (284, 57757), (446, 36778), (497, 33004), (518, 31666), (892, 18389), (994, 16502), (1036, 15833), (1561, 10508), (1988, 8251), (2627, 6244), (3122, 5254)]