21636378

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{229}}^1$

素因数の和:447

約数の個数: 48

約数和(自身を含む): 48976200

約数和(自身を除く): 27339822

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 181, 229, 261, 362, 458, 522, 543, 687, 1086, 1374, 1629, 2061, 3258, 4122, 5249, 6641, 10498, 13282, 15747, 19923, 31494, 39846, 41449, 47241, 59769, 82898, 94482, 119538, 124347, 248694, 373041, 746082, 1202021, 2404042, 3606063, 7212126, 10818189, 21636378]

約数ペア:

[(1, 21636378), (2, 10818189), (3, 7212126), (6, 3606063), (9, 2404042), (18, 1202021), (29, 746082), (58, 373041), (87, 248694), (174, 124347), (181, 119538), (229, 94482), (261, 82898), (362, 59769), (458, 47241), (522, 41449), (543, 39846), (687, 31494), (1086, 19923), (1374, 15747), (1629, 13282), (2061, 10498), (3258, 6641), (4122, 5249)]