19513890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:904

約数の個数: 96

約数和(自身を含む): 57822336

約数和(自身を除く): 38308446

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 23, 30, 33, 45, 46, 55, 66, 69, 90, 99, 110, 115, 138, 165, 198, 207, 230, 253, 330, 345, 414, 495, 506, 690, 759, 857, 990, 1035, 1265, 1518, 1714, 2070, 2277, 2530, 2571, 3795, 4285, 4554, 5142, 7590, 7713, 8570, 9427, 11385, 12855, 15426, 18854, 19711, 22770, 25710, 28281, 38565, 39422, 47135, 56562, 59133, 77130, 84843, 94270, 98555, 118266, 141405, 169686, 177399, 197110, 216821, 282810, 295665, 354798, 424215, 433642, 591330, 650463, 848430, 886995, 1084105, 1300926, 1773990, 1951389, 2168210, 3252315, 3902778, 6504630, 9756945, 19513890]

約数ペア:

[(1, 19513890), (2, 9756945), (3, 6504630), (5, 3902778), (6, 3252315), (9, 2168210), (10, 1951389), (11, 1773990), (15, 1300926), (18, 1084105), (22, 886995), (23, 848430), (30, 650463), (33, 591330), (45, 433642), (46, 424215), (55, 354798), (66, 295665), (69, 282810), (90, 216821), (99, 197110), (110, 177399), (115, 169686), (138, 141405), (165, 118266), (198, 98555), (207, 94270), (230, 84843), (253, 77130), (330, 59133), (345, 56562), (414, 47135), (495, 39422), (506, 38565), (690, 28281), (759, 25710), (857, 22770), (990, 19711), (1035, 18854), (1265, 15426), (1518, 12855), (1714, 11385), (2070, 9427), (2277, 8570), (2530, 7713), (2571, 7590), (3795, 5142), (4285, 4554)]