21352136

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{929}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 45951300

約数和(自身を除く): 24599164

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 884, 929, 1352, 1768, 1858, 2873, 3716, 5746, 7432, 11492, 12077, 15793, 22984, 24154, 31586, 48308, 63172, 96616, 126344, 157001, 205309, 314002, 410618, 628004, 821236, 1256008, 1642472, 2669017, 5338034, 10676068, 21352136]

約数ペア:

[(1, 21352136), (2, 10676068), (4, 5338034), (8, 2669017), (13, 1642472), (17, 1256008), (26, 821236), (34, 628004), (52, 410618), (68, 314002), (104, 205309), (136, 157001), (169, 126344), (221, 96616), (338, 63172), (442, 48308), (676, 31586), (884, 24154), (929, 22984), (1352, 15793), (1768, 12077), (1858, 11492), (2873, 7432), (3716, 5746)]