21557016

素因数分解:

$2^3\times 3^5\times {\mathrm{13}}^1\times {\mathrm{853}}^1$

素因数の和:887

約数の個数: 96

約数和(自身を含む): 65279760

約数和(自身を除く): 43722744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 243, 312, 324, 351, 468, 486, 648, 702, 853, 936, 972, 1053, 1404, 1706, 1944, 2106, 2559, 2808, 3159, 3412, 4212, 5118, 6318, 6824, 7677, 8424, 10236, 11089, 12636, 15354, 20472, 22178, 23031, 25272, 30708, 33267, 44356, 46062, 61416, 66534, 69093, 88712, 92124, 99801, 133068, 138186, 184248, 199602, 207279, 266136, 276372, 299403, 399204, 414558, 552744, 598806, 798408, 829116, 898209, 1197612, 1658232, 1796418, 2395224, 2694627, 3592836, 5389254, 7185672, 10778508, 21557016]

約数ペア:

[(1, 21557016), (2, 10778508), (3, 7185672), (4, 5389254), (6, 3592836), (8, 2694627), (9, 2395224), (12, 1796418), (13, 1658232), (18, 1197612), (24, 898209), (26, 829116), (27, 798408), (36, 598806), (39, 552744), (52, 414558), (54, 399204), (72, 299403), (78, 276372), (81, 266136), (104, 207279), (108, 199602), (117, 184248), (156, 138186), (162, 133068), (216, 99801), (234, 92124), (243, 88712), (312, 69093), (324, 66534), (351, 61416), (468, 46062), (486, 44356), (648, 33267), (702, 30708), (853, 25272), (936, 23031), (972, 22178), (1053, 20472), (1404, 15354), (1706, 12636), (1944, 11089), (2106, 10236), (2559, 8424), (2808, 7677), (3159, 6824), (3412, 6318), (4212, 5118)]