20981934

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{859}}^1$

素因数の和:949

約数の個数: 48

約数和(自身を含む): 48297600

約数和(自身を除く): 27315666

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 59, 69, 118, 138, 177, 207, 354, 414, 531, 859, 1062, 1357, 1718, 2577, 2714, 4071, 5154, 7731, 8142, 12213, 15462, 19757, 24426, 39514, 50681, 59271, 101362, 118542, 152043, 177813, 304086, 355626, 456129, 912258, 1165663, 2331326, 3496989, 6993978, 10490967, 20981934]

約数ペア:

[(1, 20981934), (2, 10490967), (3, 6993978), (6, 3496989), (9, 2331326), (18, 1165663), (23, 912258), (46, 456129), (59, 355626), (69, 304086), (118, 177813), (138, 152043), (177, 118542), (207, 101362), (354, 59271), (414, 50681), (531, 39514), (859, 24426), (1062, 19757), (1357, 15462), (1718, 12213), (2577, 8142), (2714, 7731), (4071, 5154)]