21771932

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 48698496

約数和(自身を除く): 26926564

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 107, 169, 172, 182, 214, 301, 338, 364, 428, 559, 602, 676, 749, 1118, 1183, 1204, 1391, 1498, 2236, 2366, 2782, 2996, 3913, 4601, 4732, 5564, 7267, 7826, 9202, 9737, 14534, 15652, 18083, 18404, 19474, 29068, 32207, 36166, 38948, 50869, 59813, 64414, 72332, 101738, 119626, 126581, 128828, 203476, 239252, 253162, 418691, 506324, 777569, 837382, 1555138, 1674764, 3110276, 5442983, 10885966, 21771932]

約数ペア:

[(1, 21771932), (2, 10885966), (4, 5442983), (7, 3110276), (13, 1674764), (14, 1555138), (26, 837382), (28, 777569), (43, 506324), (52, 418691), (86, 253162), (91, 239252), (107, 203476), (169, 128828), (172, 126581), (182, 119626), (214, 101738), (301, 72332), (338, 64414), (364, 59813), (428, 50869), (559, 38948), (602, 36166), (676, 32207), (749, 29068), (1118, 19474), (1183, 18404), (1204, 18083), (1391, 15652), (1498, 14534), (2236, 9737), (2366, 9202), (2782, 7826), (2996, 7267), (3913, 5564), (4601, 4732)]