19939436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 44997120

約数和(自身を除く): 25057684

約数列:

[1, 2, 4, 11, 17, 19, 22, 23, 34, 38, 44, 46, 61, 68, 76, 92, 122, 187, 209, 244, 253, 323, 374, 391, 418, 437, 506, 646, 671, 748, 782, 836, 874, 1012, 1037, 1159, 1292, 1342, 1403, 1564, 1748, 2074, 2318, 2684, 2806, 3553, 4148, 4301, 4636, 4807, 5612, 7106, 7429, 8602, 9614, 11407, 12749, 14212, 14858, 15433, 17204, 19228, 19703, 22814, 23851, 25498, 26657, 29716, 30866, 39406, 45628, 47702, 50996, 53314, 61732, 78812, 81719, 95404, 106628, 163438, 216733, 262361, 293227, 326876, 433466, 453169, 524722, 586454, 866932, 906338, 1049444, 1172908, 1812676, 4984859, 9969718, 19939436]

約数ペア:

[(1, 19939436), (2, 9969718), (4, 4984859), (11, 1812676), (17, 1172908), (19, 1049444), (22, 906338), (23, 866932), (34, 586454), (38, 524722), (44, 453169), (46, 433466), (61, 326876), (68, 293227), (76, 262361), (92, 216733), (122, 163438), (187, 106628), (209, 95404), (244, 81719), (253, 78812), (323, 61732), (374, 53314), (391, 50996), (418, 47702), (437, 45628), (506, 39406), (646, 30866), (671, 29716), (748, 26657), (782, 25498), (836, 23851), (874, 22814), (1012, 19703), (1037, 19228), (1159, 17204), (1292, 15433), (1342, 14858), (1403, 14212), (1564, 12749), (1748, 11407), (2074, 9614), (2318, 8602), (2684, 7429), (2806, 7106), (3553, 5612), (4148, 4807), (4301, 4636)]