21000304845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4373}}^1\times {\mathrm{8209}}^1$

素因数の和:12606

約数の個数: 48

約数和(自身を含む): 39214309680

約数和(自身を除く): 18214004835

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 4373, 8209, 13119, 21865, 24627, 39357, 41045, 56849, 65595, 73881, 106717, 123135, 170547, 196785, 284245, 320151, 369405, 511641, 533585, 852735, 960453, 1600755, 2558205, 4802265, 35897957, 107693871, 179489785, 323081613, 466673441, 538469355, 1400020323, 1615408065, 2333367205, 4200060969, 7000101615, 21000304845]

約数ペア:

[(1, 21000304845), (3, 7000101615), (5, 4200060969), (9, 2333367205), (13, 1615408065), (15, 1400020323), (39, 538469355), (45, 466673441), (65, 323081613), (117, 179489785), (195, 107693871), (585, 35897957), (4373, 4802265), (8209, 2558205), (13119, 1600755), (21865, 960453), (24627, 852735), (39357, 533585), (41045, 511641), (56849, 369405), (65595, 320151), (73881, 284245), (106717, 196785), (123135, 170547)]