21608884

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 42872256

約数和(自身を除く): 21263372

約数列:

[1, 2, 4, 11, 22, 44, 61, 83, 97, 122, 166, 194, 244, 332, 388, 671, 913, 1067, 1342, 1826, 2134, 2684, 3652, 4268, 5063, 5917, 8051, 10126, 11834, 16102, 20252, 23668, 32204, 55693, 65087, 88561, 111386, 130174, 177122, 222772, 260348, 354244, 491111, 982222, 1964444, 5402221, 10804442, 21608884]

約数ペア:

[(1, 21608884), (2, 10804442), (4, 5402221), (11, 1964444), (22, 982222), (44, 491111), (61, 354244), (83, 260348), (97, 222772), (122, 177122), (166, 130174), (194, 111386), (244, 88561), (332, 65087), (388, 55693), (671, 32204), (913, 23668), (1067, 20252), (1342, 16102), (1826, 11834), (2134, 10126), (2684, 8051), (3652, 5917), (4268, 5063)]