21187374

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2\times {\mathrm{73}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 47030256

約数和(自身を除く): 25842882

約数列:

[1, 2, 3, 6, 13, 26, 39, 61, 73, 78, 122, 146, 183, 219, 366, 438, 793, 949, 1586, 1898, 2379, 2847, 3721, 4453, 4758, 5694, 7442, 8906, 11163, 13359, 22326, 26718, 48373, 57889, 96746, 115778, 145119, 173667, 271633, 290238, 347334, 543266, 814899, 1629798, 3531229, 7062458, 10593687, 21187374]

約数ペア:

[(1, 21187374), (2, 10593687), (3, 7062458), (6, 3531229), (13, 1629798), (26, 814899), (39, 543266), (61, 347334), (73, 290238), (78, 271633), (122, 173667), (146, 145119), (183, 115778), (219, 96746), (366, 57889), (438, 48373), (793, 26718), (949, 22326), (1586, 13359), (1898, 11163), (2379, 8906), (2847, 7442), (3721, 5694), (4453, 4758)]