20921152

素因数分解:

$2^6\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 112

約数和(自身を含む): 52230528

約数和(自身を除く): 31309376

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 41, 56, 64, 67, 68, 82, 112, 119, 134, 136, 164, 224, 238, 268, 272, 287, 328, 448, 469, 476, 536, 544, 574, 656, 697, 938, 952, 1072, 1088, 1139, 1148, 1312, 1394, 1876, 1904, 2144, 2278, 2296, 2624, 2747, 2788, 3752, 3808, 4288, 4556, 4592, 4879, 5494, 5576, 7504, 7616, 7973, 9112, 9184, 9758, 10988, 11152, 15008, 15946, 18224, 18368, 19229, 19516, 21976, 22304, 30016, 31892, 36448, 38458, 39032, 43952, 44608, 46699, 63784, 72896, 76916, 78064, 87904, 93398, 127568, 153832, 156128, 175808, 186796, 255136, 307664, 312256, 326893, 373592, 510272, 615328, 653786, 747184, 1230656, 1307572, 1494368, 2615144, 2988736, 5230288, 10460576, 20921152]

約数ペア:

[(1, 20921152), (2, 10460576), (4, 5230288), (7, 2988736), (8, 2615144), (14, 1494368), (16, 1307572), (17, 1230656), (28, 747184), (32, 653786), (34, 615328), (41, 510272), (56, 373592), (64, 326893), (67, 312256), (68, 307664), (82, 255136), (112, 186796), (119, 175808), (134, 156128), (136, 153832), (164, 127568), (224, 93398), (238, 87904), (268, 78064), (272, 76916), (287, 72896), (328, 63784), (448, 46699), (469, 44608), (476, 43952), (536, 39032), (544, 38458), (574, 36448), (656, 31892), (697, 30016), (938, 22304), (952, 21976), (1072, 19516), (1088, 19229), (1139, 18368), (1148, 18224), (1312, 15946), (1394, 15008), (1876, 11152), (1904, 10988), (2144, 9758), (2278, 9184), (2296, 9112), (2624, 7973), (2747, 7616), (2788, 7504), (3752, 5576), (3808, 5494), (4288, 4879), (4556, 4592)]