20817888

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2383}}^1$

素因数の和:2416

約数の個数: 96

約数和(自身を含む): 67286016

約数和(自身を除く): 46468128

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 32, 39, 42, 48, 52, 56, 78, 84, 91, 96, 104, 112, 156, 168, 182, 208, 224, 273, 312, 336, 364, 416, 546, 624, 672, 728, 1092, 1248, 1456, 2184, 2383, 2912, 4368, 4766, 7149, 8736, 9532, 14298, 16681, 19064, 28596, 30979, 33362, 38128, 50043, 57192, 61958, 66724, 76256, 92937, 100086, 114384, 123916, 133448, 185874, 200172, 216853, 228768, 247832, 266896, 371748, 400344, 433706, 495664, 533792, 650559, 743496, 800688, 867412, 991328, 1301118, 1486992, 1601376, 1734824, 2602236, 2973984, 3469648, 5204472, 6939296, 10408944, 20817888]

約数ペア:

[(1, 20817888), (2, 10408944), (3, 6939296), (4, 5204472), (6, 3469648), (7, 2973984), (8, 2602236), (12, 1734824), (13, 1601376), (14, 1486992), (16, 1301118), (21, 991328), (24, 867412), (26, 800688), (28, 743496), (32, 650559), (39, 533792), (42, 495664), (48, 433706), (52, 400344), (56, 371748), (78, 266896), (84, 247832), (91, 228768), (96, 216853), (104, 200172), (112, 185874), (156, 133448), (168, 123916), (182, 114384), (208, 100086), (224, 92937), (273, 76256), (312, 66724), (336, 61958), (364, 57192), (416, 50043), (546, 38128), (624, 33362), (672, 30979), (728, 28596), (1092, 19064), (1248, 16681), (1456, 14298), (2184, 9532), (2383, 8736), (2912, 7149), (4368, 4766)]