18508736

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:553

約数の個数: 56

約数和(自身を含む): 39989760

約数和(自身を除く): 21481024

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 152, 248, 304, 491, 496, 589, 608, 982, 992, 1178, 1216, 1964, 1984, 2356, 3928, 4712, 7856, 9329, 9424, 15221, 15712, 18658, 18848, 30442, 31424, 37316, 37696, 60884, 74632, 121768, 149264, 243536, 289199, 298528, 487072, 578398, 597056, 974144, 1156796, 2313592, 4627184, 9254368, 18508736]

約数ペア:

[(1, 18508736), (2, 9254368), (4, 4627184), (8, 2313592), (16, 1156796), (19, 974144), (31, 597056), (32, 578398), (38, 487072), (62, 298528), (64, 289199), (76, 243536), (124, 149264), (152, 121768), (248, 74632), (304, 60884), (491, 37696), (496, 37316), (589, 31424), (608, 30442), (982, 18848), (992, 18658), (1178, 15712), (1216, 15221), (1964, 9424), (1984, 9329), (2356, 7856), (3928, 4712)]