21955430

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 47606400

約数和(自身を除く): 25650970

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 173, 185, 245, 259, 343, 346, 370, 490, 518, 686, 865, 1211, 1295, 1715, 1730, 1813, 2422, 2590, 3430, 3626, 6055, 6401, 8477, 9065, 12110, 12691, 12802, 16954, 18130, 25382, 32005, 42385, 44807, 59339, 63455, 64010, 84770, 89614, 118678, 126910, 224035, 296695, 313649, 448070, 593390, 627298, 1568245, 2195543, 3136490, 4391086, 10977715, 21955430]

約数ペア:

[(1, 21955430), (2, 10977715), (5, 4391086), (7, 3136490), (10, 2195543), (14, 1568245), (35, 627298), (37, 593390), (49, 448070), (70, 313649), (74, 296695), (98, 224035), (173, 126910), (185, 118678), (245, 89614), (259, 84770), (343, 64010), (346, 63455), (370, 59339), (490, 44807), (518, 42385), (686, 32005), (865, 25382), (1211, 18130), (1295, 16954), (1715, 12802), (1730, 12691), (1813, 12110), (2422, 9065), (2590, 8477), (3430, 6401), (3626, 6055)]