20916954

素因数分解:

$2^1\times 3^5\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 47453952

約数和(自身を除く): 26536998

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 193, 223, 243, 386, 446, 486, 579, 669, 1158, 1338, 1737, 2007, 3474, 4014, 5211, 6021, 10422, 12042, 15633, 18063, 31266, 36126, 43039, 46899, 54189, 86078, 93798, 108378, 129117, 258234, 387351, 774702, 1162053, 2324106, 3486159, 6972318, 10458477, 20916954]

約数ペア:

[(1, 20916954), (2, 10458477), (3, 6972318), (6, 3486159), (9, 2324106), (18, 1162053), (27, 774702), (54, 387351), (81, 258234), (162, 129117), (193, 108378), (223, 93798), (243, 86078), (386, 54189), (446, 46899), (486, 43039), (579, 36126), (669, 31266), (1158, 18063), (1338, 15633), (1737, 12042), (2007, 10422), (3474, 6021), (4014, 5211)]