18221490

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 57507840

約数和(自身を除く): 39286350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 311, 315, 378, 434, 465, 558, 622, 630, 651, 837, 930, 933, 945, 1085, 1302, 1395, 1555, 1674, 1866, 1890, 1953, 2170, 2177, 2790, 2799, 3110, 3255, 3906, 4185, 4354, 4665, 5598, 5859, 6510, 6531, 8370, 8397, 9330, 9641, 9765, 10885, 11718, 13062, 13995, 16794, 19282, 19530, 19593, 21770, 27990, 28923, 29295, 32655, 39186, 41985, 48205, 57846, 58590, 58779, 65310, 67487, 83970, 86769, 96410, 97965, 117558, 134974, 144615, 173538, 195930, 202461, 260307, 289230, 293895, 337435, 404922, 433845, 520614, 587790, 607383, 674870, 867690, 1012305, 1214766, 1301535, 1822149, 2024610, 2603070, 3036915, 3644298, 6073830, 9110745, 18221490]

約数ペア:

[(1, 18221490), (2, 9110745), (3, 6073830), (5, 3644298), (6, 3036915), (7, 2603070), (9, 2024610), (10, 1822149), (14, 1301535), (15, 1214766), (18, 1012305), (21, 867690), (27, 674870), (30, 607383), (31, 587790), (35, 520614), (42, 433845), (45, 404922), (54, 337435), (62, 293895), (63, 289230), (70, 260307), (90, 202461), (93, 195930), (105, 173538), (126, 144615), (135, 134974), (155, 117558), (186, 97965), (189, 96410), (210, 86769), (217, 83970), (270, 67487), (279, 65310), (310, 58779), (311, 58590), (315, 57846), (378, 48205), (434, 41985), (465, 39186), (558, 32655), (622, 29295), (630, 28923), (651, 27990), (837, 21770), (930, 19593), (933, 19530), (945, 19282), (1085, 16794), (1302, 13995), (1395, 13062), (1555, 11718), (1674, 10885), (1866, 9765), (1890, 9641), (1953, 9330), (2170, 8397), (2177, 8370), (2790, 6531), (2799, 6510), (3110, 5859), (3255, 5598), (3906, 4665), (4185, 4354)]