21696948

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 69713280

約数和(自身を除く): 48016332

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 37, 39, 42, 52, 63, 74, 78, 84, 91, 111, 117, 126, 148, 156, 179, 182, 222, 234, 252, 259, 273, 333, 358, 364, 444, 468, 481, 518, 537, 546, 666, 716, 777, 819, 962, 1036, 1074, 1092, 1253, 1332, 1443, 1554, 1611, 1638, 1924, 2148, 2327, 2331, 2506, 2886, 3108, 3222, 3276, 3367, 3759, 4329, 4654, 4662, 5012, 5772, 6444, 6623, 6734, 6981, 7518, 8658, 9308, 9324, 10101, 11277, 13246, 13468, 13962, 15036, 16289, 17316, 19869, 20202, 20943, 22554, 26492, 27924, 30303, 32578, 39738, 40404, 41886, 45108, 46361, 48867, 59607, 60606, 65156, 79476, 83772, 86099, 92722, 97734, 119214, 121212, 139083, 146601, 172198, 185444, 195468, 238428, 258297, 278166, 293202, 344396, 417249, 516594, 556332, 586404, 602693, 774891, 834498, 1033188, 1205386, 1549782, 1668996, 1808079, 2410772, 3099564, 3616158, 5424237, 7232316, 10848474, 21696948]

約数ペア:

[(1, 21696948), (2, 10848474), (3, 7232316), (4, 5424237), (6, 3616158), (7, 3099564), (9, 2410772), (12, 1808079), (13, 1668996), (14, 1549782), (18, 1205386), (21, 1033188), (26, 834498), (28, 774891), (36, 602693), (37, 586404), (39, 556332), (42, 516594), (52, 417249), (63, 344396), (74, 293202), (78, 278166), (84, 258297), (91, 238428), (111, 195468), (117, 185444), (126, 172198), (148, 146601), (156, 139083), (179, 121212), (182, 119214), (222, 97734), (234, 92722), (252, 86099), (259, 83772), (273, 79476), (333, 65156), (358, 60606), (364, 59607), (444, 48867), (468, 46361), (481, 45108), (518, 41886), (537, 40404), (546, 39738), (666, 32578), (716, 30303), (777, 27924), (819, 26492), (962, 22554), (1036, 20943), (1074, 20202), (1092, 19869), (1253, 17316), (1332, 16289), (1443, 15036), (1554, 13962), (1611, 13468), (1638, 13246), (1924, 11277), (2148, 10101), (2327, 9324), (2331, 9308), (2506, 8658), (2886, 7518), (3108, 6981), (3222, 6734), (3276, 6623), (3367, 6444), (3759, 5772), (4329, 5012), (4654, 4662)]