21721176

素因数分解:

$2^3\times 3^3\times {\mathrm{227}}^1\times {\mathrm{443}}^1$

素因数の和:685

約数の個数: 64

約数和(自身を含む): 60739200

約数和(自身を除く): 39018024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 227, 443, 454, 681, 886, 908, 1329, 1362, 1772, 1816, 2043, 2658, 2724, 3544, 3987, 4086, 5316, 5448, 6129, 7974, 8172, 10632, 11961, 12258, 15948, 16344, 23922, 24516, 31896, 47844, 49032, 95688, 100561, 201122, 301683, 402244, 603366, 804488, 905049, 1206732, 1810098, 2413464, 2715147, 3620196, 5430294, 7240392, 10860588, 21721176]

約数ペア:

[(1, 21721176), (2, 10860588), (3, 7240392), (4, 5430294), (6, 3620196), (8, 2715147), (9, 2413464), (12, 1810098), (18, 1206732), (24, 905049), (27, 804488), (36, 603366), (54, 402244), (72, 301683), (108, 201122), (216, 100561), (227, 95688), (443, 49032), (454, 47844), (681, 31896), (886, 24516), (908, 23922), (1329, 16344), (1362, 15948), (1772, 12258), (1816, 11961), (2043, 10632), (2658, 8172), (2724, 7974), (3544, 6129), (3987, 5448), (4086, 5316)]