81819666

素因数分解:

$2^1\times 3^3\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 188380800

約数和(自身を除く): 106561134

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 59, 61, 118, 122, 177, 183, 354, 366, 421, 531, 549, 842, 1062, 1098, 1263, 1593, 1647, 2526, 3186, 3294, 3599, 3789, 7198, 7578, 10797, 11367, 21594, 22734, 24839, 25681, 32391, 49678, 51362, 64782, 74517, 77043, 97173, 149034, 154086, 194346, 223551, 231129, 447102, 462258, 670653, 693387, 1341306, 1386774, 1515179, 3030358, 4545537, 9091074, 13636611, 27273222, 40909833, 81819666]

約数ペア:

[(1, 81819666), (2, 40909833), (3, 27273222), (6, 13636611), (9, 9091074), (18, 4545537), (27, 3030358), (54, 1515179), (59, 1386774), (61, 1341306), (118, 693387), (122, 670653), (177, 462258), (183, 447102), (354, 231129), (366, 223551), (421, 194346), (531, 154086), (549, 149034), (842, 97173), (1062, 77043), (1098, 74517), (1263, 64782), (1593, 51362), (1647, 49678), (2526, 32391), (3186, 25681), (3294, 24839), (3599, 22734), (3789, 21594), (7198, 11367), (7578, 10797)]