21306528

素因数分解:

$2^5\times 3^2\times {\mathrm{167}}^1\times {\mathrm{443}}^1$

素因数の和:626

約数の個数: 72

約数和(自身を含む): 61090848

約数和(自身を除く): 39784320

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 167, 288, 334, 443, 501, 668, 886, 1002, 1329, 1336, 1503, 1772, 2004, 2658, 2672, 3006, 3544, 3987, 4008, 5316, 5344, 6012, 7088, 7974, 8016, 10632, 12024, 14176, 15948, 16032, 21264, 24048, 31896, 42528, 48096, 63792, 73981, 127584, 147962, 221943, 295924, 443886, 591848, 665829, 887772, 1183696, 1331658, 1775544, 2367392, 2663316, 3551088, 5326632, 7102176, 10653264, 21306528]

約数ペア:

[(1, 21306528), (2, 10653264), (3, 7102176), (4, 5326632), (6, 3551088), (8, 2663316), (9, 2367392), (12, 1775544), (16, 1331658), (18, 1183696), (24, 887772), (32, 665829), (36, 591848), (48, 443886), (72, 295924), (96, 221943), (144, 147962), (167, 127584), (288, 73981), (334, 63792), (443, 48096), (501, 42528), (668, 31896), (886, 24048), (1002, 21264), (1329, 16032), (1336, 15948), (1503, 14176), (1772, 12024), (2004, 10632), (2658, 8016), (2672, 7974), (3006, 7088), (3544, 6012), (3987, 5344), (4008, 5316)]