21316320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:265

約数の個数: 144

約数和(自身を含む): 73945872

約数和(自身を除く): 52629552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 113, 120, 131, 144, 160, 180, 226, 240, 262, 288, 339, 360, 393, 452, 480, 524, 565, 655, 678, 720, 786, 904, 1017, 1048, 1130, 1179, 1310, 1356, 1440, 1572, 1695, 1808, 1965, 2034, 2096, 2260, 2358, 2620, 2712, 3144, 3390, 3616, 3930, 4068, 4192, 4520, 4716, 5085, 5240, 5424, 5895, 6288, 6780, 7860, 8136, 9040, 9432, 10170, 10480, 10848, 11790, 12576, 13560, 14803, 15720, 16272, 18080, 18864, 20340, 20960, 23580, 27120, 29606, 31440, 32544, 37728, 40680, 44409, 47160, 54240, 59212, 62880, 74015, 81360, 88818, 94320, 118424, 133227, 148030, 162720, 177636, 188640, 222045, 236848, 266454, 296060, 355272, 444090, 473696, 532908, 592120, 666135, 710544, 888180, 1065816, 1184240, 1332270, 1421088, 1776360, 2131632, 2368480, 2664540, 3552720, 4263264, 5329080, 7105440, 10658160, 21316320]

約数ペア:

[(1, 21316320), (2, 10658160), (3, 7105440), (4, 5329080), (5, 4263264), (6, 3552720), (8, 2664540), (9, 2368480), (10, 2131632), (12, 1776360), (15, 1421088), (16, 1332270), (18, 1184240), (20, 1065816), (24, 888180), (30, 710544), (32, 666135), (36, 592120), (40, 532908), (45, 473696), (48, 444090), (60, 355272), (72, 296060), (80, 266454), (90, 236848), (96, 222045), (113, 188640), (120, 177636), (131, 162720), (144, 148030), (160, 133227), (180, 118424), (226, 94320), (240, 88818), (262, 81360), (288, 74015), (339, 62880), (360, 59212), (393, 54240), (452, 47160), (480, 44409), (524, 40680), (565, 37728), (655, 32544), (678, 31440), (720, 29606), (786, 27120), (904, 23580), (1017, 20960), (1048, 20340), (1130, 18864), (1179, 18080), (1310, 16272), (1356, 15720), (1440, 14803), (1572, 13560), (1695, 12576), (1808, 11790), (1965, 10848), (2034, 10480), (2096, 10170), (2260, 9432), (2358, 9040), (2620, 8136), (2712, 7860), (3144, 6780), (3390, 6288), (3616, 5895), (3930, 5424), (4068, 5240), (4192, 5085), (4520, 4716)]