20337584

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{827}}^1$

素因数の和:917

約数の個数: 40

約数和(自身を含む): 41582160

約数和(自身を除く): 21244576

約数列:

[1, 2, 4, 8, 16, 29, 53, 58, 106, 116, 212, 232, 424, 464, 827, 848, 1537, 1654, 3074, 3308, 6148, 6616, 12296, 13232, 23983, 24592, 43831, 47966, 87662, 95932, 175324, 191864, 350648, 383728, 701296, 1271099, 2542198, 5084396, 10168792, 20337584]

約数ペア:

[(1, 20337584), (2, 10168792), (4, 5084396), (8, 2542198), (16, 1271099), (29, 701296), (53, 383728), (58, 350648), (106, 191864), (116, 175324), (212, 95932), (232, 87662), (424, 47966), (464, 43831), (827, 24592), (848, 23983), (1537, 13232), (1654, 12296), (3074, 6616), (3308, 6148)]