821219330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1\times {\mathrm{6619}}^1$

素因数の和:7298

約数の個数: 32

約数和(自身を含む): 1558612800

約数和(自身を除く): 737393470

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 653, 1306, 3265, 6530, 6619, 12407, 13238, 24814, 33095, 62035, 66190, 124070, 125761, 251522, 628805, 1257610, 4322207, 8644414, 21611035, 43222070, 82121933, 164243866, 410609665, 821219330]

約数ペア:

[(1, 821219330), (2, 410609665), (5, 164243866), (10, 82121933), (19, 43222070), (38, 21611035), (95, 8644414), (190, 4322207), (653, 1257610), (1306, 628805), (3265, 251522), (6530, 125761), (6619, 124070), (12407, 66190), (13238, 62035), (24814, 33095)]