21721512

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{53239}}^1$

素因数の和:53265

約数の個数: 32

約数和(自身を含む): 57499200

約数和(自身を除く): 35777688

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 53239, 106478, 159717, 212956, 319434, 425912, 638868, 905063, 1277736, 1810126, 2715189, 3620252, 5430378, 7240504, 10860756, 21721512]

約数ペア:

[(1, 21721512), (2, 10860756), (3, 7240504), (4, 5430378), (6, 3620252), (8, 2715189), (12, 1810126), (17, 1277736), (24, 905063), (34, 638868), (51, 425912), (68, 319434), (102, 212956), (136, 159717), (204, 106478), (408, 53239)]