28215663

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:415

約数の個数: 32

約数和(自身を含む): 44416512

約数和(自身を除く): 16200849

約数列:

[1, 3, 7, 21, 53, 101, 159, 251, 303, 371, 707, 753, 1113, 1757, 2121, 5271, 5353, 13303, 16059, 25351, 37471, 39909, 76053, 93121, 112413, 177457, 279363, 532371, 1343603, 4030809, 9405221, 28215663]

約数ペア:

[(1, 28215663), (3, 9405221), (7, 4030809), (21, 1343603), (53, 532371), (101, 279363), (159, 177457), (251, 112413), (303, 93121), (371, 76053), (707, 39909), (753, 37471), (1113, 25351), (1757, 16059), (2121, 13303), (5271, 5353)]