18927135

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 36403200

約数和(自身を除く): 17476065

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 47, 57, 95, 135, 141, 157, 171, 235, 285, 423, 471, 513, 705, 785, 855, 893, 1269, 1413, 2115, 2355, 2565, 2679, 2983, 4239, 4465, 6345, 7065, 7379, 8037, 8949, 13395, 14915, 21195, 22137, 24111, 26847, 36895, 40185, 44745, 66411, 80541, 110685, 120555, 134235, 140201, 199233, 332055, 402705, 420603, 701005, 996165, 1261809, 2103015, 3785427, 6309045, 18927135]

約数ペア:

[(1, 18927135), (3, 6309045), (5, 3785427), (9, 2103015), (15, 1261809), (19, 996165), (27, 701005), (45, 420603), (47, 402705), (57, 332055), (95, 199233), (135, 140201), (141, 134235), (157, 120555), (171, 110685), (235, 80541), (285, 66411), (423, 44745), (471, 40185), (513, 36895), (705, 26847), (785, 24111), (855, 22137), (893, 21195), (1269, 14915), (1413, 13395), (2115, 8949), (2355, 8037), (2565, 7379), (2679, 7065), (2983, 6345), (4239, 4465)]