19181916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2411}}^1$

素因数の和:2451

約数の個数: 72

約数和(自身を含む): 55311984

約数和(自身を除く): 36130068

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 26, 34, 36, 39, 51, 52, 68, 78, 102, 117, 153, 156, 204, 221, 234, 306, 442, 468, 612, 663, 884, 1326, 1989, 2411, 2652, 3978, 4822, 7233, 7956, 9644, 14466, 21699, 28932, 31343, 40987, 43398, 62686, 81974, 86796, 94029, 122961, 125372, 163948, 188058, 245922, 282087, 368883, 376116, 491844, 532831, 564174, 737766, 1065662, 1128348, 1475532, 1598493, 2131324, 3196986, 4795479, 6393972, 9590958, 19181916]

約数ペア:

[(1, 19181916), (2, 9590958), (3, 6393972), (4, 4795479), (6, 3196986), (9, 2131324), (12, 1598493), (13, 1475532), (17, 1128348), (18, 1065662), (26, 737766), (34, 564174), (36, 532831), (39, 491844), (51, 376116), (52, 368883), (68, 282087), (78, 245922), (102, 188058), (117, 163948), (153, 125372), (156, 122961), (204, 94029), (221, 86796), (234, 81974), (306, 62686), (442, 43398), (468, 40987), (612, 31343), (663, 28932), (884, 21699), (1326, 14466), (1989, 9644), (2411, 7956), (2652, 7233), (3978, 4822)]