18831472

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 60

約数和(自身を含む): 40966128

約数和(自身を除く): 22134656

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 121, 137, 142, 176, 242, 274, 284, 484, 548, 568, 781, 968, 1096, 1136, 1507, 1562, 1936, 2192, 3014, 3124, 6028, 6248, 8591, 9727, 12056, 12496, 16577, 17182, 19454, 24112, 33154, 34364, 38908, 66308, 68728, 77816, 106997, 132616, 137456, 155632, 213994, 265232, 427988, 855976, 1176967, 1711952, 2353934, 4707868, 9415736, 18831472]

約数ペア:

[(1, 18831472), (2, 9415736), (4, 4707868), (8, 2353934), (11, 1711952), (16, 1176967), (22, 855976), (44, 427988), (71, 265232), (88, 213994), (121, 155632), (137, 137456), (142, 132616), (176, 106997), (242, 77816), (274, 68728), (284, 66308), (484, 38908), (548, 34364), (568, 33154), (781, 24112), (968, 19454), (1096, 17182), (1136, 16577), (1507, 12496), (1562, 12056), (1936, 9727), (2192, 8591), (3014, 6248), (3124, 6028)]