28263396

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 77910336

約数和(自身を除く): 49646940

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 84, 98, 142, 147, 196, 213, 284, 294, 426, 497, 588, 677, 852, 994, 1354, 1491, 1988, 2031, 2708, 2982, 3479, 4062, 4739, 5964, 6958, 8124, 9478, 10437, 13916, 14217, 18956, 20874, 28434, 33173, 41748, 48067, 56868, 66346, 96134, 99519, 132692, 144201, 192268, 199038, 288402, 336469, 398076, 576804, 672938, 1009407, 1345876, 2018814, 2355283, 4037628, 4710566, 7065849, 9421132, 14131698, 28263396]

約数ペア:

[(1, 28263396), (2, 14131698), (3, 9421132), (4, 7065849), (6, 4710566), (7, 4037628), (12, 2355283), (14, 2018814), (21, 1345876), (28, 1009407), (42, 672938), (49, 576804), (71, 398076), (84, 336469), (98, 288402), (142, 199038), (147, 192268), (196, 144201), (213, 132692), (284, 99519), (294, 96134), (426, 66346), (497, 56868), (588, 48067), (677, 41748), (852, 33173), (994, 28434), (1354, 20874), (1491, 18956), (1988, 14217), (2031, 13916), (2708, 10437), (2982, 9478), (3479, 8124), (4062, 6958), (4739, 5964)]