21251776

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:162

約数の個数: 112

約数和(自身を含む): 53766720

約数和(自身を除く): 32514944

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 41, 52, 56, 64, 82, 89, 91, 104, 112, 164, 178, 182, 208, 224, 287, 328, 356, 364, 416, 448, 533, 574, 623, 656, 712, 728, 832, 1066, 1148, 1157, 1246, 1312, 1424, 1456, 2132, 2296, 2314, 2492, 2624, 2848, 2912, 3649, 3731, 4264, 4592, 4628, 4984, 5696, 5824, 7298, 7462, 8099, 8528, 9184, 9256, 9968, 14596, 14924, 16198, 17056, 18368, 18512, 19936, 25543, 29192, 29848, 32396, 34112, 37024, 39872, 47437, 51086, 58384, 59696, 64792, 74048, 94874, 102172, 116768, 119392, 129584, 189748, 204344, 233536, 238784, 259168, 332059, 379496, 408688, 518336, 664118, 758992, 817376, 1328236, 1517984, 1634752, 2656472, 3035968, 5312944, 10625888, 21251776]

約数ペア:

[(1, 21251776), (2, 10625888), (4, 5312944), (7, 3035968), (8, 2656472), (13, 1634752), (14, 1517984), (16, 1328236), (26, 817376), (28, 758992), (32, 664118), (41, 518336), (52, 408688), (56, 379496), (64, 332059), (82, 259168), (89, 238784), (91, 233536), (104, 204344), (112, 189748), (164, 129584), (178, 119392), (182, 116768), (208, 102172), (224, 94874), (287, 74048), (328, 64792), (356, 59696), (364, 58384), (416, 51086), (448, 47437), (533, 39872), (574, 37024), (623, 34112), (656, 32396), (712, 29848), (728, 29192), (832, 25543), (1066, 19936), (1148, 18512), (1157, 18368), (1246, 17056), (1312, 16198), (1424, 14924), (1456, 14596), (2132, 9968), (2296, 9256), (2314, 9184), (2492, 8528), (2624, 8099), (2848, 7462), (2912, 7298), (3649, 5824), (3731, 5696), (4264, 4984), (4592, 4628)]