21193669994

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1\times {\mathrm{1367}}^1$

素因数の和:1803

約数の個数: 64

約数和(自身を含む): 37948538880

約数和(自身を除く): 16754868886

約数列:

[1, 2, 7, 14, 31, 62, 139, 217, 257, 278, 434, 514, 973, 1367, 1799, 1946, 2734, 3598, 4309, 7967, 8618, 9569, 15934, 19138, 30163, 35723, 42377, 55769, 60326, 71446, 84754, 111538, 190013, 250061, 296639, 351319, 380026, 500122, 593278, 702638, 1107413, 1330091, 2214826, 2459233, 2660182, 4918466, 5890403, 7751891, 10890889, 11780806, 15503782, 21781778, 41232821, 48833341, 76236223, 82465642, 97666682, 152472446, 341833387, 683666774, 1513833571, 3027667142, 10596834997, 21193669994]

約数ペア:

[(1, 21193669994), (2, 10596834997), (7, 3027667142), (14, 1513833571), (31, 683666774), (62, 341833387), (139, 152472446), (217, 97666682), (257, 82465642), (278, 76236223), (434, 48833341), (514, 41232821), (973, 21781778), (1367, 15503782), (1799, 11780806), (1946, 10890889), (2734, 7751891), (3598, 5890403), (4309, 4918466), (7967, 2660182), (8618, 2459233), (9569, 2214826), (15934, 1330091), (19138, 1107413), (30163, 702638), (35723, 593278), (42377, 500122), (55769, 380026), (60326, 351319), (71446, 296639), (84754, 250061), (111538, 190013)]