21639456

素因数分解:

$2^5\times 3^2\times {\mathrm{227}}^1\times {\mathrm{331}}^1$

素因数の和:574

約数の個数: 72

約数和(自身を含む): 61995024

約数和(自身を除く): 40355568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 227, 288, 331, 454, 662, 681, 908, 993, 1324, 1362, 1816, 1986, 2043, 2648, 2724, 2979, 3632, 3972, 4086, 5296, 5448, 5958, 7264, 7944, 8172, 10592, 10896, 11916, 15888, 16344, 21792, 23832, 31776, 32688, 47664, 65376, 75137, 95328, 150274, 225411, 300548, 450822, 601096, 676233, 901644, 1202192, 1352466, 1803288, 2404384, 2704932, 3606576, 5409864, 7213152, 10819728, 21639456]

約数ペア:

[(1, 21639456), (2, 10819728), (3, 7213152), (4, 5409864), (6, 3606576), (8, 2704932), (9, 2404384), (12, 1803288), (16, 1352466), (18, 1202192), (24, 901644), (32, 676233), (36, 601096), (48, 450822), (72, 300548), (96, 225411), (144, 150274), (227, 95328), (288, 75137), (331, 65376), (454, 47664), (662, 32688), (681, 31776), (908, 23832), (993, 21792), (1324, 16344), (1362, 15888), (1816, 11916), (1986, 10896), (2043, 10592), (2648, 8172), (2724, 7944), (2979, 7264), (3632, 5958), (3972, 5448), (4086, 5296)]