21374895095

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:1056

約数の個数: 64

約数和(自身を含む): 28332564480

約数和(自身を除く): 6957669385

約数列:

[1, 5, 23, 31, 67, 109, 115, 155, 335, 545, 713, 821, 1541, 2077, 2507, 3379, 3565, 4105, 7303, 7705, 10385, 12535, 16895, 18883, 25451, 36515, 47771, 55007, 77717, 89489, 94415, 127255, 167969, 226393, 238855, 275035, 388585, 447445, 585373, 839845, 1131965, 1265161, 1705217, 2058247, 2774159, 2926865, 5207039, 5995763, 6325805, 8526085, 10291235, 13870795, 26035195, 29978815, 39219991, 63805657, 137902549, 185868653, 196099955, 319028285, 689512745, 929343265, 4274979019, 21374895095]

約数ペア:

[(1, 21374895095), (5, 4274979019), (23, 929343265), (31, 689512745), (67, 319028285), (109, 196099955), (115, 185868653), (155, 137902549), (335, 63805657), (545, 39219991), (713, 29978815), (821, 26035195), (1541, 13870795), (2077, 10291235), (2507, 8526085), (3379, 6325805), (3565, 5995763), (4105, 5207039), (7303, 2926865), (7705, 2774159), (10385, 2058247), (12535, 1705217), (16895, 1265161), (18883, 1131965), (25451, 839845), (36515, 585373), (47771, 447445), (55007, 388585), (77717, 275035), (89489, 238855), (94415, 226393), (127255, 167969)]