20845384

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1297}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 46611180

約数和(自身を除く): 25765796

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 328, 392, 574, 1148, 1297, 2009, 2296, 2594, 4018, 5188, 8036, 9079, 10376, 16072, 18158, 36316, 53177, 63553, 72632, 106354, 127106, 212708, 254212, 372239, 425416, 508424, 744478, 1488956, 2605673, 2977912, 5211346, 10422692, 20845384]

約数ペア:

[(1, 20845384), (2, 10422692), (4, 5211346), (7, 2977912), (8, 2605673), (14, 1488956), (28, 744478), (41, 508424), (49, 425416), (56, 372239), (82, 254212), (98, 212708), (164, 127106), (196, 106354), (287, 72632), (328, 63553), (392, 53177), (574, 36316), (1148, 18158), (1297, 16072), (2009, 10376), (2296, 9079), (2594, 8036), (4018, 5188)]