20912904

素因数分解:

$2^3\times 3^4\times {\mathrm{59}}^1\times {\mathrm{547}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 59677200

約数和(自身を除く): 38764296

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 59, 72, 81, 108, 118, 162, 177, 216, 236, 324, 354, 472, 531, 547, 648, 708, 1062, 1094, 1416, 1593, 1641, 2124, 2188, 3186, 3282, 4248, 4376, 4779, 4923, 6372, 6564, 9558, 9846, 12744, 13128, 14769, 19116, 19692, 29538, 32273, 38232, 39384, 44307, 59076, 64546, 88614, 96819, 118152, 129092, 177228, 193638, 258184, 290457, 354456, 387276, 580914, 774552, 871371, 1161828, 1742742, 2323656, 2614113, 3485484, 5228226, 6970968, 10456452, 20912904]

約数ペア:

[(1, 20912904), (2, 10456452), (3, 6970968), (4, 5228226), (6, 3485484), (8, 2614113), (9, 2323656), (12, 1742742), (18, 1161828), (24, 871371), (27, 774552), (36, 580914), (54, 387276), (59, 354456), (72, 290457), (81, 258184), (108, 193638), (118, 177228), (162, 129092), (177, 118152), (216, 96819), (236, 88614), (324, 64546), (354, 59076), (472, 44307), (531, 39384), (547, 38232), (648, 32273), (708, 29538), (1062, 19692), (1094, 19116), (1416, 14769), (1593, 13128), (1641, 12744), (2124, 9846), (2188, 9558), (3186, 6564), (3282, 6372), (4248, 4923), (4376, 4779)]