21659316

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 62469120

約数和(自身を除く): 40809804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 41, 42, 57, 76, 82, 84, 114, 123, 133, 164, 228, 246, 266, 287, 331, 399, 492, 532, 574, 662, 779, 798, 861, 993, 1148, 1324, 1558, 1596, 1722, 1986, 2317, 2337, 3116, 3444, 3972, 4634, 4674, 5453, 6289, 6951, 9268, 9348, 10906, 12578, 13571, 13902, 16359, 18867, 21812, 25156, 27142, 27804, 32718, 37734, 40713, 44023, 54284, 65436, 75468, 81426, 88046, 94997, 132069, 162852, 176092, 189994, 257849, 264138, 284991, 379988, 515698, 528276, 569982, 773547, 1031396, 1139964, 1547094, 1804943, 3094188, 3609886, 5414829, 7219772, 10829658, 21659316]

約数ペア:

[(1, 21659316), (2, 10829658), (3, 7219772), (4, 5414829), (6, 3609886), (7, 3094188), (12, 1804943), (14, 1547094), (19, 1139964), (21, 1031396), (28, 773547), (38, 569982), (41, 528276), (42, 515698), (57, 379988), (76, 284991), (82, 264138), (84, 257849), (114, 189994), (123, 176092), (133, 162852), (164, 132069), (228, 94997), (246, 88046), (266, 81426), (287, 75468), (331, 65436), (399, 54284), (492, 44023), (532, 40713), (574, 37734), (662, 32718), (779, 27804), (798, 27142), (861, 25156), (993, 21812), (1148, 18867), (1324, 16359), (1558, 13902), (1596, 13571), (1722, 12578), (1986, 10906), (2317, 9348), (2337, 9268), (3116, 6951), (3444, 6289), (3972, 5453), (4634, 4674)]