20943972

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:438

約数の個数: 108

約数和(自身を含む): 63737856

約数和(自身を除く): 42793884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 31, 36, 42, 49, 62, 63, 84, 93, 98, 124, 126, 147, 186, 196, 217, 252, 279, 294, 372, 383, 434, 441, 558, 588, 651, 766, 868, 882, 1116, 1149, 1302, 1519, 1532, 1764, 1953, 2298, 2604, 2681, 3038, 3447, 3906, 4557, 4596, 5362, 6076, 6894, 7812, 8043, 9114, 10724, 11873, 13671, 13788, 16086, 18228, 18767, 23746, 24129, 27342, 32172, 35619, 37534, 47492, 48258, 54684, 56301, 71238, 75068, 83111, 96516, 106857, 112602, 142476, 166222, 168903, 213714, 225204, 249333, 332444, 337806, 427428, 498666, 581777, 675612, 747999, 997332, 1163554, 1495998, 1745331, 2327108, 2991996, 3490662, 5235993, 6981324, 10471986, 20943972]

約数ペア:

[(1, 20943972), (2, 10471986), (3, 6981324), (4, 5235993), (6, 3490662), (7, 2991996), (9, 2327108), (12, 1745331), (14, 1495998), (18, 1163554), (21, 997332), (28, 747999), (31, 675612), (36, 581777), (42, 498666), (49, 427428), (62, 337806), (63, 332444), (84, 249333), (93, 225204), (98, 213714), (124, 168903), (126, 166222), (147, 142476), (186, 112602), (196, 106857), (217, 96516), (252, 83111), (279, 75068), (294, 71238), (372, 56301), (383, 54684), (434, 48258), (441, 47492), (558, 37534), (588, 35619), (651, 32172), (766, 27342), (868, 24129), (882, 23746), (1116, 18767), (1149, 18228), (1302, 16086), (1519, 13788), (1532, 13671), (1764, 11873), (1953, 10724), (2298, 9114), (2604, 8043), (2681, 7812), (3038, 6894), (3447, 6076), (3906, 5362), (4557, 4596)]