20181738339

素因数分解:

$3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{211}}^1\times {\mathrm{2027}}^1$

素因数の和:2365

約数の個数: 72

約数和(自身を含む): 34406918208

約数和(自身を除く): 14225179869

約数列:

[1, 3, 7, 9, 21, 49, 63, 107, 147, 211, 321, 441, 633, 749, 963, 1477, 1899, 2027, 2247, 4431, 5243, 6081, 6741, 10339, 13293, 14189, 15729, 18243, 22577, 31017, 42567, 47187, 67731, 93051, 99323, 127701, 158039, 203193, 216889, 297969, 427697, 474117, 650667, 893907, 1106273, 1283091, 1422351, 1518223, 1952001, 2993879, 3318819, 3849273, 4554669, 8981637, 9956457, 10627561, 13664007, 20957153, 26944911, 31882683, 45763579, 62871459, 95648049, 137290737, 188614377, 320345053, 411872211, 961035159, 2242415371, 2883105477, 6727246113, 20181738339]

約数ペア:

[(1, 20181738339), (3, 6727246113), (7, 2883105477), (9, 2242415371), (21, 961035159), (49, 411872211), (63, 320345053), (107, 188614377), (147, 137290737), (211, 95648049), (321, 62871459), (441, 45763579), (633, 31882683), (749, 26944911), (963, 20957153), (1477, 13664007), (1899, 10627561), (2027, 9956457), (2247, 8981637), (4431, 4554669), (5243, 3849273), (6081, 3318819), (6741, 2993879), (10339, 1952001), (13293, 1518223), (14189, 1422351), (15729, 1283091), (18243, 1106273), (22577, 893907), (31017, 650667), (42567, 474117), (47187, 427697), (67731, 297969), (93051, 216889), (99323, 203193), (127701, 158039)]