21125322

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 72

約数和(自身を含む): 50573952

約数和(自身を除く): 29448630

約数列:

[1, 2, 3, 6, 9, 17, 18, 31, 34, 51, 62, 93, 102, 131, 153, 186, 262, 279, 289, 306, 393, 527, 558, 578, 786, 867, 1054, 1179, 1581, 1734, 2227, 2358, 2601, 3162, 4061, 4454, 4743, 5202, 6681, 8122, 8959, 9486, 12183, 13362, 17918, 20043, 24366, 26877, 36549, 37859, 40086, 53754, 69037, 73098, 75718, 80631, 113577, 138074, 161262, 207111, 227154, 340731, 414222, 621333, 681462, 1173629, 1242666, 2347258, 3520887, 7041774, 10562661, 21125322]

約数ペア:

[(1, 21125322), (2, 10562661), (3, 7041774), (6, 3520887), (9, 2347258), (17, 1242666), (18, 1173629), (31, 681462), (34, 621333), (51, 414222), (62, 340731), (93, 227154), (102, 207111), (131, 161262), (153, 138074), (186, 113577), (262, 80631), (279, 75718), (289, 73098), (306, 69037), (393, 53754), (527, 40086), (558, 37859), (578, 36549), (786, 26877), (867, 24366), (1054, 20043), (1179, 17918), (1581, 13362), (1734, 12183), (2227, 9486), (2358, 8959), (2601, 8122), (3162, 6681), (4061, 5202), (4454, 4743)]