18747984

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:428

約数の個数: 80

約数和(自身を含む): 51970880

約数和(自身を除く): 33222896

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 61, 76, 114, 122, 152, 183, 228, 244, 304, 337, 366, 456, 488, 674, 732, 912, 976, 1011, 1159, 1348, 1464, 2022, 2318, 2696, 2928, 3477, 4044, 4636, 5392, 6403, 6954, 8088, 9272, 12806, 13908, 16176, 18544, 19209, 20557, 25612, 27816, 38418, 41114, 51224, 55632, 61671, 76836, 82228, 102448, 123342, 153672, 164456, 246684, 307344, 328912, 390583, 493368, 781166, 986736, 1171749, 1562332, 2343498, 3124664, 4686996, 6249328, 9373992, 18747984]

約数ペア:

[(1, 18747984), (2, 9373992), (3, 6249328), (4, 4686996), (6, 3124664), (8, 2343498), (12, 1562332), (16, 1171749), (19, 986736), (24, 781166), (38, 493368), (48, 390583), (57, 328912), (61, 307344), (76, 246684), (114, 164456), (122, 153672), (152, 123342), (183, 102448), (228, 82228), (244, 76836), (304, 61671), (337, 55632), (366, 51224), (456, 41114), (488, 38418), (674, 27816), (732, 25612), (912, 20557), (976, 19209), (1011, 18544), (1159, 16176), (1348, 13908), (1464, 12806), (2022, 9272), (2318, 8088), (2696, 6954), (2928, 6403), (3477, 5392), (4044, 4636)]