21000762328

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1013}}^1\times {\mathrm{28477}}^1$

素因数の和:29516

約数の個数: 64

約数和(自身を含む): 48512842560

約数和(自身を除く): 27512080232

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 1013, 2026, 4052, 7091, 8104, 13169, 14182, 26338, 28364, 28477, 52676, 56728, 56954, 92183, 105352, 113908, 184366, 199339, 227816, 368732, 370201, 398678, 737464, 740402, 797356, 1480804, 1594712, 2591407, 2961608, 5182814, 10365628, 20731256, 28847201, 57694402, 115388804, 201930407, 230777608, 375013613, 403860814, 750027226, 807721628, 1500054452, 1615443256, 2625095291, 3000108904, 5250190582, 10500381164, 21000762328]

約数ペア:

[(1, 21000762328), (2, 10500381164), (4, 5250190582), (7, 3000108904), (8, 2625095291), (13, 1615443256), (14, 1500054452), (26, 807721628), (28, 750027226), (52, 403860814), (56, 375013613), (91, 230777608), (104, 201930407), (182, 115388804), (364, 57694402), (728, 28847201), (1013, 20731256), (2026, 10365628), (4052, 5182814), (7091, 2961608), (8104, 2591407), (13169, 1594712), (14182, 1480804), (26338, 797356), (28364, 740402), (28477, 737464), (52676, 398678), (56728, 370201), (56954, 368732), (92183, 227816), (105352, 199339), (113908, 184366)]