21844832

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 47621952

約数和(自身を除く): 25777120

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 61, 62, 76, 122, 124, 152, 244, 248, 304, 361, 488, 496, 589, 608, 722, 976, 992, 1159, 1178, 1444, 1891, 1952, 2318, 2356, 2888, 3782, 4636, 4712, 5776, 7564, 9272, 9424, 11191, 11552, 15128, 18544, 18848, 22021, 22382, 30256, 35929, 37088, 44042, 44764, 60512, 71858, 88084, 89528, 143716, 176168, 179056, 287432, 352336, 358112, 574864, 682651, 704672, 1149728, 1365302, 2730604, 5461208, 10922416, 21844832]

約数ペア:

[(1, 21844832), (2, 10922416), (4, 5461208), (8, 2730604), (16, 1365302), (19, 1149728), (31, 704672), (32, 682651), (38, 574864), (61, 358112), (62, 352336), (76, 287432), (122, 179056), (124, 176168), (152, 143716), (244, 89528), (248, 88084), (304, 71858), (361, 60512), (488, 44764), (496, 44042), (589, 37088), (608, 35929), (722, 30256), (976, 22382), (992, 22021), (1159, 18848), (1178, 18544), (1444, 15128), (1891, 11552), (1952, 11191), (2318, 9424), (2356, 9272), (2888, 7564), (3782, 5776), (4636, 4712)]