21413744

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{421}}^1$

素因数の和:474

約数の個数: 60

約数和(自身を含む): 48194088

約数和(自身を除く): 26780344

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 289, 374, 421, 578, 748, 842, 1156, 1496, 1684, 2312, 2992, 3179, 3368, 4624, 4631, 6358, 6736, 7157, 9262, 12716, 14314, 18524, 25432, 28628, 37048, 50864, 57256, 74096, 78727, 114512, 121669, 157454, 243338, 314908, 486676, 629816, 973352, 1259632, 1338359, 1946704, 2676718, 5353436, 10706872, 21413744]

約数ペア:

[(1, 21413744), (2, 10706872), (4, 5353436), (8, 2676718), (11, 1946704), (16, 1338359), (17, 1259632), (22, 973352), (34, 629816), (44, 486676), (68, 314908), (88, 243338), (136, 157454), (176, 121669), (187, 114512), (272, 78727), (289, 74096), (374, 57256), (421, 50864), (578, 37048), (748, 28628), (842, 25432), (1156, 18524), (1496, 14314), (1684, 12716), (2312, 9262), (2992, 7157), (3179, 6736), (3368, 6358), (4624, 4631)]