21481272

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:213

約数の個数: 96

約数和(自身を含む): 60836880

約数和(自身を除く): 39355608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 67, 72, 73, 122, 134, 146, 183, 201, 219, 244, 268, 292, 366, 402, 438, 488, 536, 549, 584, 603, 657, 732, 804, 876, 1098, 1206, 1314, 1464, 1608, 1752, 2196, 2412, 2628, 4087, 4392, 4453, 4824, 4891, 5256, 8174, 8906, 9782, 12261, 13359, 14673, 16348, 17812, 19564, 24522, 26718, 29346, 32696, 35624, 36783, 39128, 40077, 44019, 49044, 53436, 58692, 73566, 80154, 88038, 98088, 106872, 117384, 147132, 160308, 176076, 294264, 298351, 320616, 352152, 596702, 895053, 1193404, 1790106, 2386808, 2685159, 3580212, 5370318, 7160424, 10740636, 21481272]

約数ペア:

[(1, 21481272), (2, 10740636), (3, 7160424), (4, 5370318), (6, 3580212), (8, 2685159), (9, 2386808), (12, 1790106), (18, 1193404), (24, 895053), (36, 596702), (61, 352152), (67, 320616), (72, 298351), (73, 294264), (122, 176076), (134, 160308), (146, 147132), (183, 117384), (201, 106872), (219, 98088), (244, 88038), (268, 80154), (292, 73566), (366, 58692), (402, 53436), (438, 49044), (488, 44019), (536, 40077), (549, 39128), (584, 36783), (603, 35624), (657, 32696), (732, 29346), (804, 26718), (876, 24522), (1098, 19564), (1206, 17812), (1314, 16348), (1464, 14673), (1608, 13359), (1752, 12261), (2196, 9782), (2412, 8906), (2628, 8174), (4087, 5256), (4392, 4891), (4453, 4824)]