21631576

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2333}}^1$

素因数の和:2419

約数の個数: 32

約数和(自身を含む): 43412400

約数和(自身を除く): 21780824

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2318, 2333, 4636, 4666, 9272, 9332, 18664, 44327, 88654, 142313, 177308, 284626, 354616, 569252, 1138504, 2703947, 5407894, 10815788, 21631576]

約数ペア:

[(1, 21631576), (2, 10815788), (4, 5407894), (8, 2703947), (19, 1138504), (38, 569252), (61, 354616), (76, 284626), (122, 177308), (152, 142313), (244, 88654), (488, 44327), (1159, 18664), (2318, 9332), (2333, 9272), (4636, 4666)]