21601424

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 49215600

約数和(自身を除く): 27614176

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 41, 52, 68, 82, 104, 136, 149, 164, 208, 221, 272, 298, 328, 442, 533, 596, 656, 697, 884, 1066, 1192, 1394, 1768, 1937, 2132, 2384, 2533, 2788, 3536, 3874, 4264, 5066, 5576, 6109, 7748, 8528, 9061, 10132, 11152, 12218, 15496, 18122, 20264, 24436, 30992, 32929, 36244, 40528, 48872, 65858, 72488, 79417, 97744, 103853, 131716, 144976, 158834, 207706, 263432, 317668, 415412, 526864, 635336, 830824, 1270672, 1350089, 1661648, 2700178, 5400356, 10800712, 21601424]

約数ペア:

[(1, 21601424), (2, 10800712), (4, 5400356), (8, 2700178), (13, 1661648), (16, 1350089), (17, 1270672), (26, 830824), (34, 635336), (41, 526864), (52, 415412), (68, 317668), (82, 263432), (104, 207706), (136, 158834), (149, 144976), (164, 131716), (208, 103853), (221, 97744), (272, 79417), (298, 72488), (328, 65858), (442, 48872), (533, 40528), (596, 36244), (656, 32929), (697, 30992), (884, 24436), (1066, 20264), (1192, 18122), (1394, 15496), (1768, 12218), (1937, 11152), (2132, 10132), (2384, 9061), (2533, 8528), (2788, 7748), (3536, 6109), (3874, 5576), (4264, 5066)]