21155652

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:270

約数の個数: 108

約数和(自身を含む): 63488880

約数和(自身を除く): 42333228

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 67, 84, 98, 126, 134, 147, 179, 196, 201, 252, 268, 294, 358, 402, 441, 469, 537, 588, 603, 716, 804, 882, 938, 1074, 1206, 1253, 1407, 1611, 1764, 1876, 2148, 2412, 2506, 2814, 3222, 3283, 3759, 4221, 5012, 5628, 6444, 6566, 7518, 8442, 8771, 9849, 11277, 11993, 13132, 15036, 16884, 17542, 19698, 22554, 23986, 26313, 29547, 35084, 35979, 39396, 45108, 47972, 52626, 59094, 71958, 78939, 83951, 105252, 107937, 118188, 143916, 157878, 167902, 215874, 251853, 315756, 335804, 431748, 503706, 587657, 755559, 1007412, 1175314, 1511118, 1762971, 2350628, 3022236, 3525942, 5288913, 7051884, 10577826, 21155652]

約数ペア:

[(1, 21155652), (2, 10577826), (3, 7051884), (4, 5288913), (6, 3525942), (7, 3022236), (9, 2350628), (12, 1762971), (14, 1511118), (18, 1175314), (21, 1007412), (28, 755559), (36, 587657), (42, 503706), (49, 431748), (63, 335804), (67, 315756), (84, 251853), (98, 215874), (126, 167902), (134, 157878), (147, 143916), (179, 118188), (196, 107937), (201, 105252), (252, 83951), (268, 78939), (294, 71958), (358, 59094), (402, 52626), (441, 47972), (469, 45108), (537, 39396), (588, 35979), (603, 35084), (716, 29547), (804, 26313), (882, 23986), (938, 22554), (1074, 19698), (1206, 17542), (1253, 16884), (1407, 15036), (1611, 13132), (1764, 11993), (1876, 11277), (2148, 9849), (2412, 8771), (2506, 8442), (2814, 7518), (3222, 6566), (3283, 6444), (3759, 5628), (4221, 5012)]