21000833266

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1\times {\mathrm{661}}^1$

素因数の和:960

約数の個数: 96

約数和(自身を含む): 39231285120

約数和(自身を除く): 18230451854

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 113, 133, 151, 226, 266, 302, 661, 791, 931, 1057, 1322, 1582, 1862, 2114, 2147, 2869, 4294, 4627, 5537, 5738, 7399, 9254, 11074, 12559, 14798, 15029, 17063, 20083, 25118, 30058, 32389, 34126, 40166, 64778, 74693, 87913, 99811, 105203, 119441, 140581, 149386, 175826, 199622, 210406, 238882, 281162, 324197, 522851, 615391, 648394, 698677, 836087, 1045702, 1230782, 1397354, 1419167, 1672174, 1896409, 2269379, 2838334, 3659957, 3792818, 4538758, 4890739, 7319914, 9781478, 9934169, 11278643, 13274863, 15885653, 19868338, 22557286, 26549726, 31771306, 69539183, 78950501, 92924041, 139078366, 157901002, 185848082, 214294217, 428588434, 552653507, 1105307014, 1500059519, 3000119038, 10500416633, 21000833266]

約数ペア:

[(1, 21000833266), (2, 10500416633), (7, 3000119038), (14, 1500059519), (19, 1105307014), (38, 552653507), (49, 428588434), (98, 214294217), (113, 185848082), (133, 157901002), (151, 139078366), (226, 92924041), (266, 78950501), (302, 69539183), (661, 31771306), (791, 26549726), (931, 22557286), (1057, 19868338), (1322, 15885653), (1582, 13274863), (1862, 11278643), (2114, 9934169), (2147, 9781478), (2869, 7319914), (4294, 4890739), (4627, 4538758), (5537, 3792818), (5738, 3659957), (7399, 2838334), (9254, 2269379), (11074, 1896409), (12559, 1672174), (14798, 1419167), (15029, 1397354), (17063, 1230782), (20083, 1045702), (25118, 836087), (30058, 698677), (32389, 648394), (34126, 615391), (40166, 522851), (64778, 324197), (74693, 281162), (87913, 238882), (99811, 210406), (105203, 199622), (119441, 175826), (140581, 149386)]