20698758

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 72

約数和(自身を含む): 49999248

約数和(自身を除く): 29300490

約数列:

[1, 2, 3, 6, 9, 17, 18, 23, 34, 46, 51, 69, 102, 138, 153, 173, 207, 289, 306, 346, 391, 414, 519, 578, 782, 867, 1038, 1173, 1557, 1734, 2346, 2601, 2941, 3114, 3519, 3979, 5202, 5882, 6647, 7038, 7958, 8823, 11937, 13294, 17646, 19941, 23874, 26469, 35811, 39882, 49997, 52938, 59823, 67643, 71622, 99994, 119646, 135286, 149991, 202929, 299982, 405858, 449973, 608787, 899946, 1149931, 1217574, 2299862, 3449793, 6899586, 10349379, 20698758]

約数ペア:

[(1, 20698758), (2, 10349379), (3, 6899586), (6, 3449793), (9, 2299862), (17, 1217574), (18, 1149931), (23, 899946), (34, 608787), (46, 449973), (51, 405858), (69, 299982), (102, 202929), (138, 149991), (153, 135286), (173, 119646), (207, 99994), (289, 71622), (306, 67643), (346, 59823), (391, 52938), (414, 49997), (519, 39882), (578, 35811), (782, 26469), (867, 23874), (1038, 19941), (1173, 17646), (1557, 13294), (1734, 11937), (2346, 8823), (2601, 7958), (2941, 7038), (3114, 6647), (3519, 5882), (3979, 5202)]