21000403656

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{3136261}}^1$

素因数の和:3136307

約数の個数: 64

約数和(自身を含む): 60216230400

約数和(自身を除く): 39215826744

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 54, 62, 72, 93, 108, 124, 186, 216, 248, 279, 372, 558, 744, 837, 1116, 1674, 2232, 3348, 6696, 3136261, 6272522, 9408783, 12545044, 18817566, 25090088, 28226349, 37635132, 56452698, 75270264, 84679047, 97224091, 112905396, 169358094, 194448182, 225810792, 291672273, 338716188, 388896364, 583344546, 677432376, 777792728, 875016819, 1166689092, 1750033638, 2333378184, 2625050457, 3500067276, 5250100914, 7000134552, 10500201828, 21000403656]

約数ペア:

[(1, 21000403656), (2, 10500201828), (3, 7000134552), (4, 5250100914), (6, 3500067276), (8, 2625050457), (9, 2333378184), (12, 1750033638), (18, 1166689092), (24, 875016819), (27, 777792728), (31, 677432376), (36, 583344546), (54, 388896364), (62, 338716188), (72, 291672273), (93, 225810792), (108, 194448182), (124, 169358094), (186, 112905396), (216, 97224091), (248, 84679047), (279, 75270264), (372, 56452698), (558, 37635132), (744, 28226349), (837, 25090088), (1116, 18817566), (1674, 12545044), (2232, 9408783), (3348, 6272522), (6696, 3136261)]