19665532

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 39674880

約数和(自身を除く): 20009348

約数列:

[1, 2, 4, 17, 19, 31, 34, 38, 62, 68, 76, 124, 323, 491, 527, 589, 646, 982, 1054, 1178, 1292, 1964, 2108, 2356, 8347, 9329, 10013, 15221, 16694, 18658, 20026, 30442, 33388, 37316, 40052, 60884, 158593, 258757, 289199, 317186, 517514, 578398, 634372, 1035028, 1156796, 4916383, 9832766, 19665532]

約数ペア:

[(1, 19665532), (2, 9832766), (4, 4916383), (17, 1156796), (19, 1035028), (31, 634372), (34, 578398), (38, 517514), (62, 317186), (68, 289199), (76, 258757), (124, 158593), (323, 60884), (491, 40052), (527, 37316), (589, 33388), (646, 30442), (982, 20026), (1054, 18658), (1178, 16694), (1292, 15221), (1964, 10013), (2108, 9329), (2356, 8347)]