21198996

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:755

約数の個数: 120

約数和(自身を含む): 68302080

約数和(自身を除く): 47103084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 52, 54, 63, 78, 81, 84, 91, 108, 117, 126, 156, 162, 182, 189, 234, 252, 273, 324, 351, 364, 378, 468, 546, 567, 702, 719, 756, 819, 1053, 1092, 1134, 1404, 1438, 1638, 2106, 2157, 2268, 2457, 2876, 3276, 4212, 4314, 4914, 5033, 6471, 7371, 8628, 9347, 9828, 10066, 12942, 14742, 15099, 18694, 19413, 20132, 25884, 28041, 29484, 30198, 37388, 38826, 45297, 56082, 58239, 60396, 65429, 77652, 84123, 90594, 112164, 116478, 130858, 135891, 168246, 181188, 196287, 232956, 252369, 261716, 271782, 336492, 392574, 407673, 504738, 543564, 588861, 757107, 785148, 815346, 1009476, 1177722, 1514214, 1630692, 1766583, 2355444, 3028428, 3533166, 5299749, 7066332, 10599498, 21198996]

約数ペア:

[(1, 21198996), (2, 10599498), (3, 7066332), (4, 5299749), (6, 3533166), (7, 3028428), (9, 2355444), (12, 1766583), (13, 1630692), (14, 1514214), (18, 1177722), (21, 1009476), (26, 815346), (27, 785148), (28, 757107), (36, 588861), (39, 543564), (42, 504738), (52, 407673), (54, 392574), (63, 336492), (78, 271782), (81, 261716), (84, 252369), (91, 232956), (108, 196287), (117, 181188), (126, 168246), (156, 135891), (162, 130858), (182, 116478), (189, 112164), (234, 90594), (252, 84123), (273, 77652), (324, 65429), (351, 60396), (364, 58239), (378, 56082), (468, 45297), (546, 38826), (567, 37388), (702, 30198), (719, 29484), (756, 28041), (819, 25884), (1053, 20132), (1092, 19413), (1134, 18694), (1404, 15099), (1438, 14742), (1638, 12942), (2106, 10066), (2157, 9828), (2268, 9347), (2457, 8628), (2876, 7371), (3276, 6471), (4212, 5033), (4314, 4914)]