19897812

素因数分解:

$2^2\times 3^5\times {\mathrm{11}}^1\times {\mathrm{1861}}^1$

素因数の和:1891

約数の個数: 72

約数和(自身を含む): 56932512

約数和(自身を除く): 37034700

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 81, 99, 108, 132, 162, 198, 243, 297, 324, 396, 486, 594, 891, 972, 1188, 1782, 1861, 2673, 3564, 3722, 5346, 5583, 7444, 10692, 11166, 16749, 20471, 22332, 33498, 40942, 50247, 61413, 66996, 81884, 100494, 122826, 150741, 184239, 200988, 245652, 301482, 368478, 452223, 552717, 602964, 736956, 904446, 1105434, 1658151, 1808892, 2210868, 3316302, 4974453, 6632604, 9948906, 19897812]

約数ペア:

[(1, 19897812), (2, 9948906), (3, 6632604), (4, 4974453), (6, 3316302), (9, 2210868), (11, 1808892), (12, 1658151), (18, 1105434), (22, 904446), (27, 736956), (33, 602964), (36, 552717), (44, 452223), (54, 368478), (66, 301482), (81, 245652), (99, 200988), (108, 184239), (132, 150741), (162, 122826), (198, 100494), (243, 81884), (297, 66996), (324, 61413), (396, 50247), (486, 40942), (594, 33498), (891, 22332), (972, 20471), (1188, 16749), (1782, 11166), (1861, 10692), (2673, 7444), (3564, 5583), (3722, 5346)]