19723236

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{239}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 52026240

約数和(自身を除く): 32303004

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 138, 156, 239, 276, 299, 478, 529, 598, 717, 897, 956, 1058, 1196, 1434, 1587, 1794, 2116, 2868, 3107, 3174, 3588, 5497, 6214, 6348, 6877, 9321, 10994, 12428, 13754, 16491, 18642, 20631, 21988, 27508, 32982, 37284, 41262, 65964, 71461, 82524, 126431, 142922, 214383, 252862, 285844, 379293, 428766, 505724, 758586, 857532, 1517172, 1643603, 3287206, 4930809, 6574412, 9861618, 19723236]

約数ペア:

[(1, 19723236), (2, 9861618), (3, 6574412), (4, 4930809), (6, 3287206), (12, 1643603), (13, 1517172), (23, 857532), (26, 758586), (39, 505724), (46, 428766), (52, 379293), (69, 285844), (78, 252862), (92, 214383), (138, 142922), (156, 126431), (239, 82524), (276, 71461), (299, 65964), (478, 41262), (529, 37284), (598, 32982), (717, 27508), (897, 21988), (956, 20631), (1058, 18642), (1196, 16491), (1434, 13754), (1587, 12428), (1794, 10994), (2116, 9321), (2868, 6877), (3107, 6348), (3174, 6214), (3588, 5497)]