21363480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 72230400

約数和(自身を除く): 50866920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 131, 135, 151, 180, 216, 262, 270, 302, 360, 393, 453, 524, 540, 604, 655, 755, 786, 906, 1048, 1080, 1179, 1208, 1310, 1359, 1510, 1572, 1812, 1965, 2265, 2358, 2620, 2718, 3020, 3144, 3537, 3624, 3930, 4077, 4530, 4716, 5240, 5436, 5895, 6040, 6795, 7074, 7860, 8154, 9060, 9432, 10872, 11790, 13590, 14148, 15720, 16308, 17685, 18120, 19781, 20385, 23580, 27180, 28296, 32616, 35370, 39562, 40770, 47160, 54360, 59343, 70740, 79124, 81540, 98905, 118686, 141480, 158248, 163080, 178029, 197810, 237372, 296715, 356058, 395620, 474744, 534087, 593430, 712116, 791240, 890145, 1068174, 1186860, 1424232, 1780290, 2136348, 2373720, 2670435, 3560580, 4272696, 5340870, 7121160, 10681740, 21363480]

約数ペア:

[(1, 21363480), (2, 10681740), (3, 7121160), (4, 5340870), (5, 4272696), (6, 3560580), (8, 2670435), (9, 2373720), (10, 2136348), (12, 1780290), (15, 1424232), (18, 1186860), (20, 1068174), (24, 890145), (27, 791240), (30, 712116), (36, 593430), (40, 534087), (45, 474744), (54, 395620), (60, 356058), (72, 296715), (90, 237372), (108, 197810), (120, 178029), (131, 163080), (135, 158248), (151, 141480), (180, 118686), (216, 98905), (262, 81540), (270, 79124), (302, 70740), (360, 59343), (393, 54360), (453, 47160), (524, 40770), (540, 39562), (604, 35370), (655, 32616), (755, 28296), (786, 27180), (906, 23580), (1048, 20385), (1080, 19781), (1179, 18120), (1208, 17685), (1310, 16308), (1359, 15720), (1510, 14148), (1572, 13590), (1812, 11790), (1965, 10872), (2265, 9432), (2358, 9060), (2620, 8154), (2718, 7860), (3020, 7074), (3144, 6795), (3537, 6040), (3624, 5895), (3930, 5436), (4077, 5240), (4530, 4716)]