21264453

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 36990720

約数和(自身を除く): 15726267

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 103, 113, 203, 261, 309, 339, 609, 721, 791, 927, 1017, 1827, 2163, 2373, 2987, 3277, 6489, 7119, 8961, 9831, 11639, 20909, 22939, 26883, 29493, 34917, 62727, 68817, 81473, 104751, 188181, 206451, 244419, 337531, 733257, 1012593, 2362717, 3037779, 7088151, 21264453]

約数ペア:

[(1, 21264453), (3, 7088151), (7, 3037779), (9, 2362717), (21, 1012593), (29, 733257), (63, 337531), (87, 244419), (103, 206451), (113, 188181), (203, 104751), (261, 81473), (309, 68817), (339, 62727), (609, 34917), (721, 29493), (791, 26883), (927, 22939), (1017, 20909), (1827, 11639), (2163, 9831), (2373, 8961), (2987, 7119), (3277, 6489)]