21770944

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:353

約数の個数: 56

約数和(自身を含む): 47109888

約数和(自身を除く): 25338944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 137, 191, 208, 274, 382, 416, 548, 764, 832, 1096, 1528, 1781, 2192, 2483, 3056, 3562, 4384, 4966, 6112, 7124, 8768, 9932, 12224, 14248, 19864, 26167, 28496, 39728, 52334, 56992, 79456, 104668, 113984, 158912, 209336, 340171, 418672, 680342, 837344, 1360684, 1674688, 2721368, 5442736, 10885472, 21770944]

約数ペア:

[(1, 21770944), (2, 10885472), (4, 5442736), (8, 2721368), (13, 1674688), (16, 1360684), (26, 837344), (32, 680342), (52, 418672), (64, 340171), (104, 209336), (137, 158912), (191, 113984), (208, 104668), (274, 79456), (382, 56992), (416, 52334), (548, 39728), (764, 28496), (832, 26167), (1096, 19864), (1528, 14248), (1781, 12224), (2192, 9932), (2483, 8768), (3056, 7124), (3562, 6112), (4384, 4966)]