21528364

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{617}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 45059616

約数和(自身を除く): 23531252

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 61, 122, 143, 244, 286, 572, 617, 671, 793, 1234, 1342, 1586, 2468, 2684, 3172, 6787, 8021, 8723, 13574, 16042, 17446, 27148, 32084, 34892, 37637, 75274, 88231, 150548, 176462, 352924, 414007, 489281, 828014, 978562, 1656028, 1957124, 5382091, 10764182, 21528364]

約数ペア:

[(1, 21528364), (2, 10764182), (4, 5382091), (11, 1957124), (13, 1656028), (22, 978562), (26, 828014), (44, 489281), (52, 414007), (61, 352924), (122, 176462), (143, 150548), (244, 88231), (286, 75274), (572, 37637), (617, 34892), (671, 32084), (793, 27148), (1234, 17446), (1342, 16042), (1586, 13574), (2468, 8723), (2684, 8021), (3172, 6787)]