20657976

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 54345600

約数和(自身を除く): 33687624

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 67, 87, 116, 134, 174, 201, 232, 268, 348, 402, 443, 536, 696, 804, 886, 1329, 1608, 1772, 1943, 2658, 3544, 3886, 5316, 5829, 7772, 10632, 11658, 12847, 15544, 23316, 25694, 29681, 38541, 46632, 51388, 59362, 77082, 89043, 102776, 118724, 154164, 178086, 237448, 308328, 356172, 712344, 860749, 1721498, 2582247, 3442996, 5164494, 6885992, 10328988, 20657976]

約数ペア:

[(1, 20657976), (2, 10328988), (3, 6885992), (4, 5164494), (6, 3442996), (8, 2582247), (12, 1721498), (24, 860749), (29, 712344), (58, 356172), (67, 308328), (87, 237448), (116, 178086), (134, 154164), (174, 118724), (201, 102776), (232, 89043), (268, 77082), (348, 59362), (402, 51388), (443, 46632), (536, 38541), (696, 29681), (804, 25694), (886, 23316), (1329, 15544), (1608, 12847), (1772, 11658), (1943, 10632), (2658, 7772), (3544, 5829), (3886, 5316)]