20817472

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:347

約数の個数: 56

約数和(自身を含む): 45061632

約数和(自身を除く): 24244160

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 131, 191, 208, 262, 382, 416, 524, 764, 832, 1048, 1528, 1703, 2096, 2483, 3056, 3406, 4192, 4966, 6112, 6812, 8384, 9932, 12224, 13624, 19864, 25021, 27248, 39728, 50042, 54496, 79456, 100084, 108992, 158912, 200168, 325273, 400336, 650546, 800672, 1301092, 1601344, 2602184, 5204368, 10408736, 20817472]

約数ペア:

[(1, 20817472), (2, 10408736), (4, 5204368), (8, 2602184), (13, 1601344), (16, 1301092), (26, 800672), (32, 650546), (52, 400336), (64, 325273), (104, 200168), (131, 158912), (191, 108992), (208, 100084), (262, 79456), (382, 54496), (416, 50042), (524, 39728), (764, 27248), (832, 25021), (1048, 19864), (1528, 13624), (1703, 12224), (2096, 9932), (2483, 8384), (3056, 6812), (3406, 6112), (4192, 4966)]