20789844

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 51706368

約数和(自身を除く): 30916524

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 204, 223, 446, 457, 669, 892, 914, 1338, 1371, 1828, 2676, 2742, 3791, 5484, 7582, 7769, 11373, 15164, 15538, 22746, 23307, 31076, 45492, 46614, 93228, 101911, 203822, 305733, 407644, 611466, 1222932, 1732487, 3464974, 5197461, 6929948, 10394922, 20789844]

約数ペア:

[(1, 20789844), (2, 10394922), (3, 6929948), (4, 5197461), (6, 3464974), (12, 1732487), (17, 1222932), (34, 611466), (51, 407644), (68, 305733), (102, 203822), (204, 101911), (223, 93228), (446, 46614), (457, 45492), (669, 31076), (892, 23307), (914, 22746), (1338, 15538), (1371, 15164), (1828, 11373), (2676, 7769), (2742, 7582), (3791, 5484)]