21338876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 21843844

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 101, 202, 221, 239, 404, 442, 478, 884, 956, 1313, 1717, 2626, 3107, 3434, 4063, 5252, 6214, 6868, 8126, 12428, 16252, 22321, 24139, 44642, 48278, 52819, 89284, 96556, 105638, 211276, 313807, 410363, 627614, 820726, 1255228, 1641452, 5334719, 10669438, 21338876]

約数ペア:

[(1, 21338876), (2, 10669438), (4, 5334719), (13, 1641452), (17, 1255228), (26, 820726), (34, 627614), (52, 410363), (68, 313807), (101, 211276), (202, 105638), (221, 96556), (239, 89284), (404, 52819), (442, 48278), (478, 44642), (884, 24139), (956, 22321), (1313, 16252), (1717, 12428), (2626, 8126), (3107, 6868), (3434, 6214), (4063, 5252)]