19426365

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 40235520

約数和(自身を除く): 20809155

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 61, 63, 105, 135, 183, 189, 305, 315, 337, 427, 549, 915, 945, 1011, 1281, 1647, 1685, 2135, 2359, 2745, 3033, 3843, 5055, 6405, 7077, 8235, 9099, 11529, 11795, 15165, 19215, 20557, 21231, 35385, 45495, 57645, 61671, 63693, 102785, 106155, 143899, 185013, 308355, 318465, 431697, 555039, 719495, 925065, 1295091, 2158485, 2775195, 3885273, 6475455, 19426365]

約数ペア:

[(1, 19426365), (3, 6475455), (5, 3885273), (7, 2775195), (9, 2158485), (15, 1295091), (21, 925065), (27, 719495), (35, 555039), (45, 431697), (61, 318465), (63, 308355), (105, 185013), (135, 143899), (183, 106155), (189, 102785), (305, 63693), (315, 61671), (337, 57645), (427, 45495), (549, 35385), (915, 21231), (945, 20557), (1011, 19215), (1281, 15165), (1647, 11795), (1685, 11529), (2135, 9099), (2359, 8235), (2745, 7077), (3033, 6405), (3843, 5055)]