18699772

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 42230160

約数和(自身を除く): 23530388

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 49, 52, 82, 91, 98, 164, 179, 182, 196, 287, 358, 364, 533, 574, 637, 716, 1066, 1148, 1253, 1274, 2009, 2132, 2327, 2506, 2548, 3731, 4018, 4654, 5012, 7339, 7462, 8036, 8771, 9308, 14678, 14924, 16289, 17542, 26117, 29356, 32578, 35084, 51373, 52234, 65156, 95407, 102746, 104468, 114023, 190814, 205492, 228046, 359611, 381628, 456092, 667849, 719222, 1335698, 1438444, 2671396, 4674943, 9349886, 18699772]

約数ペア:

[(1, 18699772), (2, 9349886), (4, 4674943), (7, 2671396), (13, 1438444), (14, 1335698), (26, 719222), (28, 667849), (41, 456092), (49, 381628), (52, 359611), (82, 228046), (91, 205492), (98, 190814), (164, 114023), (179, 104468), (182, 102746), (196, 95407), (287, 65156), (358, 52234), (364, 51373), (533, 35084), (574, 32578), (637, 29356), (716, 26117), (1066, 17542), (1148, 16289), (1253, 14924), (1274, 14678), (2009, 9308), (2132, 8771), (2327, 8036), (2506, 7462), (2548, 7339), (3731, 5012), (4018, 4654)]