18991584

素因数分解:

$2^5\times 3^4\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:470

約数の個数: 120

約数和(自身を含む): 59276448

約数和(自身を除く): 40284864

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 68, 72, 81, 96, 102, 108, 136, 144, 153, 162, 204, 216, 272, 288, 306, 324, 408, 431, 432, 459, 544, 612, 648, 816, 862, 864, 918, 1224, 1293, 1296, 1377, 1632, 1724, 1836, 2448, 2586, 2592, 2754, 3448, 3672, 3879, 4896, 5172, 5508, 6896, 7327, 7344, 7758, 10344, 11016, 11637, 13792, 14654, 14688, 15516, 20688, 21981, 22032, 23274, 29308, 31032, 34911, 41376, 43962, 44064, 46548, 58616, 62064, 65943, 69822, 87924, 93096, 117232, 124128, 131886, 139644, 175848, 186192, 197829, 234464, 263772, 279288, 351696, 372384, 395658, 527544, 558576, 593487, 703392, 791316, 1055088, 1117152, 1186974, 1582632, 2110176, 2373948, 3165264, 4747896, 6330528, 9495792, 18991584]

約数ペア:

[(1, 18991584), (2, 9495792), (3, 6330528), (4, 4747896), (6, 3165264), (8, 2373948), (9, 2110176), (12, 1582632), (16, 1186974), (17, 1117152), (18, 1055088), (24, 791316), (27, 703392), (32, 593487), (34, 558576), (36, 527544), (48, 395658), (51, 372384), (54, 351696), (68, 279288), (72, 263772), (81, 234464), (96, 197829), (102, 186192), (108, 175848), (136, 139644), (144, 131886), (153, 124128), (162, 117232), (204, 93096), (216, 87924), (272, 69822), (288, 65943), (306, 62064), (324, 58616), (408, 46548), (431, 44064), (432, 43962), (459, 41376), (544, 34911), (612, 31032), (648, 29308), (816, 23274), (862, 22032), (864, 21981), (918, 20688), (1224, 15516), (1293, 14688), (1296, 14654), (1377, 13792), (1632, 11637), (1724, 11016), (1836, 10344), (2448, 7758), (2586, 7344), (2592, 7327), (2754, 6896), (3448, 5508), (3672, 5172), (3879, 4896)]