20018166

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 47692800

約数和(自身を除く): 27674634

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 71, 98, 137, 142, 147, 213, 274, 294, 343, 411, 426, 497, 686, 822, 959, 994, 1029, 1491, 1918, 2058, 2877, 2982, 3479, 5754, 6713, 6958, 9727, 10437, 13426, 19454, 20139, 20874, 24353, 29181, 40278, 46991, 48706, 58362, 68089, 73059, 93982, 136178, 140973, 146118, 204267, 281946, 408534, 476623, 953246, 1429869, 2859738, 3336361, 6672722, 10009083, 20018166]

約数ペア:

[(1, 20018166), (2, 10009083), (3, 6672722), (6, 3336361), (7, 2859738), (14, 1429869), (21, 953246), (42, 476623), (49, 408534), (71, 281946), (98, 204267), (137, 146118), (142, 140973), (147, 136178), (213, 93982), (274, 73059), (294, 68089), (343, 58362), (411, 48706), (426, 46991), (497, 40278), (686, 29181), (822, 24353), (959, 20874), (994, 20139), (1029, 19454), (1491, 13426), (1918, 10437), (2058, 9727), (2877, 6958), (2982, 6713), (3479, 5754)]