21179490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{509}}^1$

素因数の和:611

約数の個数: 64

約数和(自身を含む): 54345600

約数和(自身を除く): 33166110

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 73, 95, 114, 146, 190, 219, 285, 365, 438, 509, 570, 730, 1018, 1095, 1387, 1527, 2190, 2545, 2774, 3054, 4161, 5090, 6935, 7635, 8322, 9671, 13870, 15270, 19342, 20805, 29013, 37157, 41610, 48355, 58026, 74314, 96710, 111471, 145065, 185785, 222942, 290130, 371570, 557355, 705983, 1114710, 1411966, 2117949, 3529915, 4235898, 7059830, 10589745, 21179490]

約数ペア:

[(1, 21179490), (2, 10589745), (3, 7059830), (5, 4235898), (6, 3529915), (10, 2117949), (15, 1411966), (19, 1114710), (30, 705983), (38, 557355), (57, 371570), (73, 290130), (95, 222942), (114, 185785), (146, 145065), (190, 111471), (219, 96710), (285, 74314), (365, 58026), (438, 48355), (509, 41610), (570, 37157), (730, 29013), (1018, 20805), (1095, 19342), (1387, 15270), (1527, 13870), (2190, 9671), (2545, 8322), (2774, 7635), (3054, 6935), (4161, 5090)]