21439872

素因数分解:

$2^7\times 3^2\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:560

約数の個数: 96

約数和(自身を含む): 63488880

約数和(自身を除く): 42049008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 64, 72, 74, 96, 111, 128, 144, 148, 192, 222, 288, 296, 333, 384, 444, 503, 576, 592, 666, 888, 1006, 1152, 1184, 1332, 1509, 1776, 2012, 2368, 2664, 3018, 3552, 4024, 4527, 4736, 5328, 6036, 7104, 8048, 9054, 10656, 12072, 14208, 16096, 18108, 18611, 21312, 24144, 32192, 36216, 37222, 42624, 48288, 55833, 64384, 72432, 74444, 96576, 111666, 144864, 148888, 167499, 193152, 223332, 289728, 297776, 334998, 446664, 579456, 595552, 669996, 893328, 1191104, 1339992, 1786656, 2382208, 2679984, 3573312, 5359968, 7146624, 10719936, 21439872]

約数ペア:

[(1, 21439872), (2, 10719936), (3, 7146624), (4, 5359968), (6, 3573312), (8, 2679984), (9, 2382208), (12, 1786656), (16, 1339992), (18, 1191104), (24, 893328), (32, 669996), (36, 595552), (37, 579456), (48, 446664), (64, 334998), (72, 297776), (74, 289728), (96, 223332), (111, 193152), (128, 167499), (144, 148888), (148, 144864), (192, 111666), (222, 96576), (288, 74444), (296, 72432), (333, 64384), (384, 55833), (444, 48288), (503, 42624), (576, 37222), (592, 36216), (666, 32192), (888, 24144), (1006, 21312), (1152, 18611), (1184, 18108), (1332, 16096), (1509, 14208), (1776, 12072), (2012, 10656), (2368, 9054), (2664, 8048), (3018, 7104), (3552, 6036), (4024, 5328), (4527, 4736)]