18721862

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 31492800

約数和(自身を除く): 12770938

約数列:

[1, 2, 17, 23, 34, 46, 89, 178, 269, 391, 538, 782, 1513, 2047, 3026, 4094, 4573, 6187, 9146, 12374, 23941, 34799, 47882, 69598, 105179, 210358, 406997, 550643, 813994, 1101286, 9360931, 18721862]

約数ペア:

[(1, 18721862), (2, 9360931), (17, 1101286), (23, 813994), (34, 550643), (46, 406997), (89, 210358), (178, 105179), (269, 69598), (391, 47882), (538, 34799), (782, 23941), (1513, 12374), (2047, 9146), (3026, 6187), (4094, 4573)]