19873678

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 33747840

約数和(自身を除く): 13874162

約数列:

[1, 2, 11, 22, 59, 61, 118, 122, 251, 502, 649, 671, 1298, 1342, 2761, 3599, 5522, 7198, 14809, 15311, 29618, 30622, 39589, 79178, 162899, 168421, 325798, 336842, 903349, 1806698, 9936839, 19873678]

約数ペア:

[(1, 19873678), (2, 9936839), (11, 1806698), (22, 903349), (59, 336842), (61, 325798), (118, 168421), (122, 162899), (251, 79178), (502, 39589), (649, 30622), (671, 29618), (1298, 15311), (1342, 14809), (2761, 7198), (3599, 5522)]