19871028

素因数分解:

$2^2\times 3^3\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 55641600

約数和(自身を除く): 35770572

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 79, 102, 108, 137, 153, 158, 204, 237, 274, 306, 316, 411, 459, 474, 548, 612, 711, 822, 918, 948, 1233, 1343, 1422, 1644, 1836, 2133, 2329, 2466, 2686, 2844, 3699, 4029, 4266, 4658, 4932, 5372, 6987, 7398, 8058, 8532, 9316, 10823, 12087, 13974, 14796, 16116, 20961, 21646, 24174, 27948, 32469, 36261, 41922, 43292, 48348, 62883, 64938, 72522, 83844, 97407, 125766, 129876, 145044, 183991, 194814, 251532, 292221, 367982, 389628, 551973, 584442, 735964, 1103946, 1168884, 1655919, 2207892, 3311838, 4967757, 6623676, 9935514, 19871028]

約数ペア:

[(1, 19871028), (2, 9935514), (3, 6623676), (4, 4967757), (6, 3311838), (9, 2207892), (12, 1655919), (17, 1168884), (18, 1103946), (27, 735964), (34, 584442), (36, 551973), (51, 389628), (54, 367982), (68, 292221), (79, 251532), (102, 194814), (108, 183991), (137, 145044), (153, 129876), (158, 125766), (204, 97407), (237, 83844), (274, 72522), (306, 64938), (316, 62883), (411, 48348), (459, 43292), (474, 41922), (548, 36261), (612, 32469), (711, 27948), (822, 24174), (918, 21646), (948, 20961), (1233, 16116), (1343, 14796), (1422, 13974), (1644, 12087), (1836, 10823), (2133, 9316), (2329, 8532), (2466, 8058), (2686, 7398), (2844, 6987), (3699, 5372), (4029, 4932), (4266, 4658)]