21887030

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 46158336

約数和(自身を除く): 24271306

約数列:

[1, 2, 5, 10, 11, 22, 23, 41, 46, 55, 82, 110, 115, 205, 211, 230, 253, 410, 422, 451, 506, 902, 943, 1055, 1265, 1886, 2110, 2255, 2321, 2530, 4510, 4642, 4715, 4853, 8651, 9430, 9706, 10373, 11605, 17302, 20746, 23210, 24265, 43255, 48530, 51865, 53383, 86510, 95161, 103730, 106766, 190322, 198973, 266915, 397946, 475805, 533830, 951610, 994865, 1989730, 2188703, 4377406, 10943515, 21887030]

約数ペア:

[(1, 21887030), (2, 10943515), (5, 4377406), (10, 2188703), (11, 1989730), (22, 994865), (23, 951610), (41, 533830), (46, 475805), (55, 397946), (82, 266915), (110, 198973), (115, 190322), (205, 106766), (211, 103730), (230, 95161), (253, 86510), (410, 53383), (422, 51865), (451, 48530), (506, 43255), (902, 24265), (943, 23210), (1055, 20746), (1265, 17302), (1886, 11605), (2110, 10373), (2255, 9706), (2321, 9430), (2530, 8651), (4510, 4853), (4642, 4715)]