21637668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 59270400

約数和(自身を除く): 37632732

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 41, 51, 52, 68, 78, 82, 102, 123, 156, 164, 199, 204, 221, 246, 398, 442, 492, 533, 597, 663, 697, 796, 884, 1066, 1194, 1326, 1394, 1599, 2091, 2132, 2388, 2587, 2652, 2788, 3198, 3383, 4182, 5174, 6396, 6766, 7761, 8159, 8364, 9061, 10149, 10348, 13532, 15522, 16318, 18122, 20298, 24477, 27183, 31044, 32636, 36244, 40596, 43979, 48954, 54366, 87958, 97908, 106067, 108732, 131937, 138703, 175916, 212134, 263874, 277406, 318201, 416109, 424268, 527748, 554812, 636402, 832218, 1272804, 1664436, 1803139, 3606278, 5409417, 7212556, 10818834, 21637668]

約数ペア:

[(1, 21637668), (2, 10818834), (3, 7212556), (4, 5409417), (6, 3606278), (12, 1803139), (13, 1664436), (17, 1272804), (26, 832218), (34, 636402), (39, 554812), (41, 527748), (51, 424268), (52, 416109), (68, 318201), (78, 277406), (82, 263874), (102, 212134), (123, 175916), (156, 138703), (164, 131937), (199, 108732), (204, 106067), (221, 97908), (246, 87958), (398, 54366), (442, 48954), (492, 43979), (533, 40596), (597, 36244), (663, 32636), (697, 31044), (796, 27183), (884, 24477), (1066, 20298), (1194, 18122), (1326, 16318), (1394, 15522), (1599, 13532), (2091, 10348), (2132, 10149), (2388, 9061), (2587, 8364), (2652, 8159), (2788, 7761), (3198, 6766), (3383, 6396), (4182, 5174)]