19400156937

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1445723}}^1$

素因数の和:1445810

約数の個数: 32

約数和(自身を含む): 33309480960

約数和(自身を除く): 13909324023

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1491, 1917, 4473, 13419, 1445723, 4337169, 10120061, 13011507, 30360183, 39034521, 91080549, 102646333, 273241647, 307938999, 718524331, 923816997, 2155572993, 2771450991, 6466718979, 19400156937]

約数ペア:

[(1, 19400156937), (3, 6466718979), (7, 2771450991), (9, 2155572993), (21, 923816997), (27, 718524331), (63, 307938999), (71, 273241647), (189, 102646333), (213, 91080549), (497, 39034521), (639, 30360183), (1491, 13011507), (1917, 10120061), (4473, 4337169), (13419, 1445723)]